Pentax Home Safety Product AF540FGZ User Manual

AUTO ZOOM ELECTRONIC

FLASH UNIT

OPERATING MANUAL

Please read this operating manual carefully first for proper use.

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Thank you for purchasing the PENTAX Auto-flash AF540FGZ.

In addition to easy daylight sync photography with TTL auto, the AF540FGZ also allows wireless TTL auto (P-TTL

auto) photography and high-speed sync. It is clip-on type flash which enables accurate focus adjustments even in

dark locations with built-in AF-assist spotbeam.

PENTAX is a trademark of PENTAX Corporation.

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FOR SAFE USE OF YOUR FLASH UNIT

Although we have carefully designed this flash unit for safe operation, please be sure to follow precautions given on

page 2.

WARNING

This mark indicates precautions that, if not followed, could result in serious injury to the user.

CAUTION

This mark indicates precautions that, if not followed, could result in minor or medium injury to the user or damage to

the equipment.

is a symbol indicating items that are prohibited.

is a symbol emphasizing a warning.

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WARNING

CAUTION

The flash contains electronic circuits that

operate at high voltages. Do not attempt to

disassemble the flash unit yourself, as there is

danger of an electric shock.

Do not use the flash near anyone’s eyes, as it

may hurt them. Be particularly careful with the

flash around infants.

Never try to disassemble or short the batteries

and never try to recharge the non-rechargeable

batteries. Also, do not dispose of the battery in

fire, as it may explode or ignite.

If internal parts of the flash unit becomes

exposed due to impact, etc., do not touch them

as there is danger of an electric shock.

Do not expose the flash unit to water or

moisture as there is danger of an electric

shock.

Misuse of the batteries can result in leakage,

overheating, explosion, etc. The batteries

should be inserted with the “+” and “–” sides

facing correctly.

Remove the batteries from the camera

immediately if they become hot or begin to

smoke. Be careful not to burn yourself during

removal.

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Precautions for Your Flash Unit

● Never use organic solvents such as paint thinner, alcohol or benzene to clean the flash unit.

● Avoid leaving the flash unit for extend period in places where the humidity and temperature are very high such

as in a car.

● Be careful not to subject the flash unit to strong vibrations, shock or pressure. Use a cushion to protect the flash

unit when carrying it in a motorcycle, car, boat, etc.

● Do not use the flash unit where it may be directly exposed to rain water etc.

● When using the flash unit off the camera, do not try to attach any metallic object to the electric contacts or to

mount incompatible accessories. Otherwise, the TTL auto mechanism may be damaged or rendered

inoperable.

● Periodic checks are recommended every 1 to 2 years in order to maintain high performance. If the unit has not

been used for an extended period of time, or is being readied for an important shoot, it is recommended that

you take a test flash with the test button and test shoot with it. Test flash is also important to maintain optimum

performance.

● Avoid contact with garbage, dirt, sand, dust, water, toxic gases, salt, etc. When the flash unit is subjected to rain

or moisture, wipe it off with a dry soft.

● When photographing black subjects or white subjects, use exposure compensation.

● Do not attach any accessories having the wrong number of electrical contacts for the hot shoe or grip.

Otherwise, some functions may not work properly.

● Pentax will not be held responsible for any accidents or damage, etc. caused due to the use of this product with

cameras which are made by companies other than Pentax.

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●Cautions Regarding Batteries

● This flash unit uses 4 AA-size alkaline, lithium, or nickel metal hydride batteries. Do not use any other type of

battery. The flash unit may not be able to operate correctly or demonstrate sufficient performance, or the flash

unit itself may generate heat, depending on the type of batteries used.

● AA-size alkaline and lithium batteries themselves are not rechargeable. Also, do not dismantle the batteries.

Trying to recharge or dismantle these batteries may cause an explosion or leakage.

● When changing batteries, do not mix batteries of different manufacture, type and capacity.

● Do not insert the batteries with the positive (+) and negative (-) terminals the wrong way around. Incorrect

insertion may lead to an explosion or fire.

● Battery performance may temporarily be hindered in low temperatures. Batteries should be kept warm in

temperatures below freezing for proper performance.

● If you do not intend to use the flash unit for an extended period of time, remove the batteries. Leaving the

batteries in may cause damage to the flash unit due to leakage etc.

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Table of Contents

Contrast Control Sync Flash............................. 36

FOR SAFE USE OF YOUR FLASH UNIT........... 1

Advanced Functions........................................ 38

Precautions for Your Flash Unit ....................... 3

Cautions Regarding Batteries............................. 4

Names of Parts ................................................... 6

Major bundled items ........................................... 9

LCD Panel Indicator.......................................... 10

Inserting the Batteries ..................................... 12

Using the Optional External Power Source ...... 13

Mounting to Camera......................................... 14

Wireless Mode.................................................. 38

Slave................................................................. 50

Slave Mode Setting........................................... 52

Slow-Speed-Sync Photography........................ 53

Bounce Flash.................................................... 54

AF Spotbeam.................................................... 56

Wide-Angle Panel and Catchlight Panel........... 57

Modeling Flash/Test Flash................................ 58

Connecting the AF540FGZ with the

Turning the Power On...................................... 15

Extension Cord ............................................. 59

Supported Functions for Pentax Cameras .... 60

Charging the AF540FGZ with the

Optional External Power Source................... 16

Switching the Charging Mode........................... 16

Auto Power Off Function................................... 17

Quick Power On Function................................. 17

Cameras that Support Each Flash Mode.......... 60

Cameras that Support Each Sync Mode .......... 62

Cameras that Support Wireless Mode.............. 63

Cameras that Support Slow-Speed-Sync

Mode............................................................. 64

Functions Related to Each Flash Mode............ 64

Sync Mode Restrictions.................................... 72

Precautions When Photographing with a

Select Button (S)/Adjustment

Dial Functions............................................... 18

Camera Format and Flash

Coverage Angle............................................ 20

Using the Flash Modes .................................... 25

Slave Flash................................................... 79

Flash Effective Range...................................... 80

P-TTL Auto Flash.............................................. 26

TTL Auto Flash ................................................. 27

Auto Flash......................................................... 28

Manual Flash .................................................... 30

Calculating the Flash Effective Range.............. 80

Guide Number (GN).......................................... 82

P-TTL and TTL Auto Flash Effective Range..... 85

Optional Accessories....................................... 87

Specifications................................................... 88

Warranty Policy ................................................ 91

Using the Sync Mode....................................... 32

Leading Curtain Sync Mode ............................. 33

Trailing Curtain Sync Mode .............................. 33

High-Speed Sync Mode.................................... 34

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Names of Parts

 Bounce angle adjustment

 LCD panel

 Flash mode button

 Bounce lock release button

 Battery chamber cover

 Shoe lock pin

 Select button

 Adjustment dial

 Flash signal contacts

 Shoe bracket

 LCD panel illumination button/ Format button

 Zoom button/ Channel button

 Test button/ Modeling button/ Ready lamp

 Setting switch

 Locking lever

 Power switch

 Wireless mode button

 Sync mode switch

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ꢀ

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ꢌ

ꢂ

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ꢈ

ꢄ

ꢍ

ꢉ

ꢎ

ꢏ

ꢐ

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 5P Sync socket

 External power source socket

 Socket cover

ꢒ

ꢑ

 Slave sensor

 Wide-angle panel

 Catchlight panel

 Flash head

ꢗ

ꢖ

ꢓ

 AF spotbeam emitter

 Auto flash sensor

ꢙ

ꢘ

ꢔ

ꢕ

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●Major bundled items

 Stand

 Case

 Operating manual (this manual)

 Certification

Opening of

the stand

Slide the hot shoe bracket into the opening of the

stand.

● You cannot attach the off-camera shoe adapter F

to the bundled stand.

● When attaching the flash unit to the stand, do not

tighten the locking lever too far. Tightening too

far may cause the locking lever to not lock

sufficiently when the flash unit is removed from

the stand and attached to the hot shoe of the

camera.

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●LCD Panel Indicator

 Zoom indicator

: (A.Zoom) ● (M.Zoom) xxmm = 20, 24, 28, 35, 50, 70, 85 (35 mm format)

35, 45, 55, 70, 100, 135, 150 (645 format)

55, 60, 70, 90, 120, 180, 190 (67 format)

13, 16, 19, 24, 34, 48, 58 (DIGITAL format)

 Format indicator

: (35mm) ● (645) ● (67) ● (DIGITAL)

: (P-TTL) ● (A) ● (M) ● (SB)

 Flash mode indicator

 Flash exposure

: (-3.0 to +1.0 steps, 0.5 step increments)

compensation indicator

 ISO indicator

: ISO 25 to 1600

 Bar graph

 Effective flash range

: (Minimum distance) - (Maximum distance) (in P-TTL, TTL, A modes)

(Minimum distance) (in manual mode)

indicator

 AF spotbeam

: (SB)



Sync mode indicator

: (Leading curtain sync:

sync:

: (

: (NN/ X X)

) - (Trailing curtain sync:

)

) - (Contrast control

) - (High-speed sync:

 Bounce flash warning

)



Flash output adjustment

indicator

f/stop

: F2 to F22 (When set to ISO 100)

: (1 to 4CH)

 Channel indicator



Wireless mode indicator

: (MASTER), (CONTROL), (SLAVE)

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When in poorly lit locations and the LCD panel cannot

be seen, pressing the LCD panel illumination button

(LIGHT) will illuminate the panel for about 10 seconds.

Pressing it again will turn off the illumination.

● The camera's LCD panel lights up also when you

press the LCD illumination button (LIGHT) and

the exposure metering timer is on for the

following camera.

Auto Check Display

If the correct flash output is obtained, the flash mode

indicator and ( ) in the viewfinder will begin blinking.

If the auto check display does not blink, the flash output

is insufficient. Verify the effective flash range (refer to

page 80) and adjust the distance to the subject, or open

the aperture further.

Even if the auto check display is blinking, the flash

output may be incorrect if the subject is too close.

● Depending on the combination of flash mode

and camera, the auto check display may not

MZ-S

display correctly

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Inserting the Batteries

ꢀ

ꢁ

Slide the battery chamber cover as shown in the

Insert four AA-size batteries, making sure the

1 _{figure to open.}

2 _{plus/minus marking (+, -) match the diagram}

inside the battery chamber cover.

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Types of Batteries

This flash unit uses four AA-size batteries of the same

type, as shown below.

- Alkaline battery (LR6)

●Using the Optional External Power

Source

Use the optional TR Power Pack-3 (upcoming product,

sold separately) as an external power source.

● For information on how to use the TR Power

Pack-3 and connect to the flash unit, refer to the

manual provided with the TR Power Pack-3.

● For information on how to recharge the flash unit

using the TR Power Pack-3, refer to “Charging

the AF540FGZ with the Optional External Power

Source” on page 16.

- Lithium battery (FR6)

- Nickel-Metal Hydride battery (Ni-MH)

(Nickel manganese (Ni-Mn) and nickel cadmium (Ni-

Cd) batteries cannot be used.)

● For information about recycling times and total

number of flashes, refer to “Specifications” on

page 88.

● If the indicators on the LCD panel or the ready

lamp does not light up, the batteries may be

exhausted or not inserted correctly. Verify the

orientation of the batteries or, if the indicators

and ready lamp still do not light up, replace them

with new batteries.

● If you let the flash unit fire successively using

lithium batteries, the batteries will overheat,

activating a safety circuit that temporarily

disables the flash unit. If this occurs, rest the

flash unit so that the temperature of the batteries

returns to normal.

● The TR Power Pack-2 cannot be used with the

AF540FGZ for mechanical reasons.

The external power source uses six C-size alkaline

batteries (LR14).

(Nickel cadmium (Ni-Cd) batteries cannot be used in the

TR Power Pack-3.)

If charging time takes more than 20 seconds, the

batteries have been exhausted and should be replaced

with new batteries. If the flash unit is used with

exhausted batteries, the settings may return to their

default configuration.

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Mounting to Camera

Remove the hot shoe cover from the camera.

Attach the flash unit to the camera.

Turn the locking lever of the flash unit in the

direction opposite to that indicated by (FIX●)

(clockwise from the direction of the LCD

panel).

●

The following cameras have a shoe lock pin. When

attaching the flash unit, turn the locking lever in

the (FIX●) direction and lock the flash unit to the

camera with the shoe lock pin. When releasing the

flash unit, be sure to do so after turning the

locking lever in the direction opposite to that

Slide the hot shoe bracket of the flash unit into

the camera's hot shoe from the back of the

camera forward.

Turn the locking lever of the flash unit in the

direction indicated by (FIX●) to lock it.

indicated by (FIX●) and loosening the shoe lock

pin. Otherwise, the hot shoe will be damaged.

*ist D series, *ist, MZ-S, MZ-L/ZX-L/MZ-6,

MZ-60/ZX-60

● The 672 does not come with a hot shoe. The

optional hot shoe grip 672 should be used.

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Turning the Power On

Sliding the power switch to the (ON) position will turn

on the power. The ready lamp will light up when the

flash is charged. Sliding it to the (OFF) position will turn

off the power.

● Turn the camera on before turning the flash unit

on.

● Please refer to page 38 for the WIRELESS MODE

position.

● When the power is turned OFF and ON again, the

flash mode will be set to P-TTL and the Zoom

position A. Zoom 24mm (35mm), A. Zoom 45mm

(645), A. Zoom 60mm (67) and A.Zoom 16mm

(DIGITAL).

Ready lamp

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●

When turning off the flash unit, make sure you

turn the power switch of the external power

source to OFF. Otherwise the external power

source may be exhausted.

●Charging the AF540FGZ with the

Optional External Power Source

Prepare the external power source TR Power

1 _{Pack-3 in accordance with the instruction in the}

operating manual.

●Switching the Charging Mode

You can select a charging mode from among the

following.

Confirm that the power switch of the flash unit

2 _{and TR Power Pack-3 is turned to OFF. Then,}

plug the power cord into the external power

socket on the flash unit.

PP1: Charge the flash unit using only the external

power source.

Turn the power switch of the external power

PP2: Charge the flash unit using the external power

source and internal batteries. (The charging time

will be shorter than PP1.)

3 _{source and the power switch of the flash unit to}

ON. When charging is complete the ready lamp

of the flash unit will light up.

Slide the setting switch up.

When using the external power source, do not

remove the batteries from the AF 540 FGZ:

otherwise, the flash unit will not function.

Press the LCD panel illumination button (LIGHT)

2 _{for 2 seconds or more.}

SL 1 or SL 2 will be displayed.

●

The TR Power Pack-3 is equipped with a pilot

lamp which lights up to indicate that the power is

activated. Note that a lit lamp does not indicate

that the flash unit is ready for use. Make sure the

ready lamp on the flash unit is lit before

discharging the flash unit.

Press the flash mode button (MODE) twice.

3 _{PP1 or PP2 will be displayed.}

Press the select button (S) the number of times

4 _{required to select PP 1 or PP 2.}

Press the LCD panel illumination button (LIGHT).

5 _{The LCD panel returns to the normal display.}

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●Auto Power Off Function

When the flash unit is left unused for about 3 minutes

with the power switch set to the (ON) position, it

automatically switches off to save the power.

●Quick Power On Function

If the flash unit is mounted on the autofocus cameras,

press the shutter release button half way to turn on the

power.

● The Quick Power On function can be utilized

both when only internal batteries are used and

when an external power source is used.

Slide the setting switch up.

Press the LCD panel illumination button (LIGHT)

2 _{for 2 seconds or more.}

SL 1 or SL 2 will be displayed.

Press the flash mode button (MODE).

Press the select button (S) the number of times

4 _{required to select PH 1 or PH 2.}

PH1: Enables the auto power off function.

PH2: Disables the auto power off function.

Press the LCD panel illumination button (LIGHT).

● The Auto Power Off function can be utilized both

when only internal batteries are used and when

an external power source is used.

● In the auto flash mode (A), the power will shut off

after about 6 minutes.

● In the wireless mode, the power will turn off after

about 1 hour of non-operation.

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Select Button (S)/Adjustment Dial Functions

4 types of settings are available as shown on the following pages for the select button (S) and the adjustment dial.

ꢀ

ꢁ

Procedure

Turn the adjustment dial and adjust the blinking

2 _number.

Press the select button (S) so that the number to

1 _{adjust is blinking.}

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After adjustment, press the select button (S) and

3 _{stop the blinking. Adjust the other items below}

using the same procedure.

● When using multiple flash units set to P-TTL or

TTL Auto and adjusting the amount of light at the

same time, use the camera’s exposure

compensation.

ꢂ

Connected Flash Mode

Adjustment Range

Flash exposure compensation P-TTL Auto flash

-3.0 to +1.0 levels (EV) (0.5 step increments)

ISO 25 to ISO 1600, F2 to F22 (with ISO100)

1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64

ISO / F (aperture) setting

Manual flash output

Auto flash (A)

Manual (M)

Wireless (W) master flash (M)

Wireless (W) slave flash (S)

Flash output setting

1/1, 2/3, 1/2, 1/3

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Camera Format and Flash Coverage Angle

The AF540FGZ’s flash coverage angle can be adjusted

with the auto or manual zoom head to suit the camera’s

picture format (35 mm, 645, 67, DIGITAL) and lens

focal length. Follow the procedure below.

Camera Format (FORMAT) setting

Slide the setting switch down (yellow dot).

Press the format button (FORMAT) the

number of times required to select the camera

format size from 35mm, 645, 67 or DIGITAL.

Slide the setting switch back up (white dot)

when complete.

● The format size will automatically be set when

the shutter release button is pressed halfway

down when the AF540FGZ is used in

combination with the following cameras.

*ist, MZ-S, MZ-L/ZX-L/MZ-6, *ist DL2, *ist DS2,

*ist DL, *ist DS, *ist D

ꢂ

ꢁ

ꢀ

For all other cameras, set accordingly before

use.

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Auto zoom (A.Zoom):

Enables you to set the flash coverage angle

automatically when the camera exposure

metering timer is on (information is displayed

in the viewfinder). The combination of the

following cameras and lenses supports this

mode.

ꢀ

ꢁ

Camera

*ist D series

Lens Types

DA, D FA, FA J,

FA, F

35mm autofocus single

lens reflex cameras

D FA, FA J, FA, F

FA645

645N2, 645N

● When using with Auto Zoom, make sure that (A.

Zoom) is shown on the LCD panel.

● Auto Zoom will not function when the flash mode

is set to Auto (A).

Zoom position (Flash coverage angle) setting

Manual zoom (M.Zoom):

With the setting switch set to the (white dot),

press the zoom button (ZOOM) to set the suitable

flash coverage angle matching the lens focal

length. The zoom position changes as shown on

page 23.

Enables you to set the flash coverage angle

manually. Select this mode when the camera

or lens is set to manual focus mode.

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● In the manual zoom mode, refer to the LCD panel

and set it so the flash coverage angle matches

the lens focal length or set a flash coverage

angle that is shorter than the lens focal length.

Zoom Positions for Each Format

* With the wide-angle panel

35mm camera

20mm*

24mm

645 camera

35mm*

45mm

67 camera

55mm*

60mm

Digital camera

13mm*

16mm

28mm

55mm

70mm

19mm

35mm

70mm

90mm

24mm

50mm

100mm

135mm

150mm

120mm

180mm

190mm

34mm

70mm

48mm

85mm

58mm

● When the wide-angle panel is used, the zoom

button (ZOOM) will not work. (The wide-angle

panel is in a slit on the top of the flash head. Pull

it out so that it covers the front of the flash head.

If the catchlight panel is not necessary, leave it in

the slit.)

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Digital Camera

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35mm Camera

645 Camera

67 Camera

● In the (A.Zoom) mode, the flash coverage angle

will be adjusted automatically to suit the lens

focal length when you press the shutter release

button halfway, and the camera exposure

metering timer is on.

● A warning signal appears as follows when the

flash cannot cover the focal length of the

camera.

● In the (A.Zoom) mode, if there is no lens focal

length information, the flash coverage angle will

be set automatically to 24mm with a 35mm

camera. With a 645 camera, it will be set to

45mm, with a 67 camera it will be 60mm, and with

a digital camera it will be 16 mm.

● When using the wide-angle panel, the angle will

be fixed at 20 mm for a 35 mm camera, 35 mm for

a 645 camera, 55 mm for a 67 camera, and 13 mm

for a digital camera in both A.Zoom and M.Zoom.

- The zoom indicator blinks for the combination of

the following camera and lenses.

Camera

*ist D series

Lens Types

DA, D FA, FA J, FA, F

35mm autofocus single

lens reflex cameras

D FA, FA J, FA, F

FA645

645N2, 645N

- The warning signal does not appear for the

combination of the following cameras and focal

lengths.

Camera

Focal length

*ist, MZ-L/ZX-L/MZ-6,

MZ-S

20 mm and over, less

than 24 mm

13 mm and over, less

than 16 mm

*ist DL, *ist DS, *ist D

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Using the Flash Modes

The AF540FGZ has the following flash modes. Select

the mode best suited for the subject.

Before photographing, confirm the following.

1. Whether your camera supports the desired flash

mode.

TTL auto flash (TTL)

Based on the amount of light reflected off the film of the

camera, the camera adjusts the flash output

automatically to obtain a correct exposure. Refer to

page 27 for instructions on how to use this flash mode.

● Cameras that Support Each Flash Mode

(Page 60)

2. Whether you can use the desired function with

the combination of your camera and the flash

mode you have set.

Auto flash (A)

The built-in flash metering sensor adjusts the flash

output automatically. Use with cameras that are not P-

TTL or TTL Auto flash compatible. Refer to page 28 for

instructions on how to use this flash mode.

● Functions Related to Each Flash Mode

(Page 64 - 71)

Manual flash (M)

When the camera is set to manual exposure, manual

flash can be set to suit the subject distance and

aperture. The manual flash output can be set to 1/1,

1/2, 1/4, 1/8, 1/16, 1/32, or 1/64. Refer to page 30 for

instructions on how to use this flash mode.

P-TTL auto flash (P-TTL)

A pre-flash is fired before the main flash so that the

multi-segment metering sensor can measure the

subject's distance, brightness, brightness difference,

backlit condition, etc. The data obtained is incorporated

to set the output of the main flash. This mode obtains

more accurate results than with the conventional TTL

mode. Refer to page 26 for instructions on how to use

this flash mode.

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Set the sync mode switch to leading curtain sync

●P-TTL Auto Flash

3 ₍

), trailing curtain sync (

contrast-control ( ), according to the

subject. (Refer to page 32.)

), or

Effective flash range

● After turning the power (ON), the setting will be

(P-TTL) and (A.Zoom).

Set the zoom position. (The setting method

4 _{differs according to your camera and lens. Refer}

to page 21.)

Confirm that the subject is within the effective

ꢄ

ꢃ

5 _{flash range and the ready lamp is lit. Then take a}

ꢁ

picture.

● In the following cameras, if the correct flash

output is obtained, the flash mode indicator and

ꢀ

ꢂ

(

) in the viewfinder will blink.

*ist, MZ-S, MZ-L/ZX-L/MZ-6

Refer to page 25 for the features and conditions of use

of this flash mode.

For details, refer to “Auto Check Display” on

page 11.

● The correct flash output is obtained in P-TTL

auto mode only when the flash unit is used with

autofocus lenses.

● If necessary, an exposure compensation amount

can be set between +1.0 to -3.0 steps in 0.5-step

increments. (Refer to page 18.)

Procedure

Turn on the flash unit.

Press the flash mode button (MODE) until

2 _{(P-TTL) is displayed on the LCD panel.}

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Procedure

●TTL Auto Flash

Refer to page 25 for the features and conditions of use

of this flash mode.

Turn on the flash unit.

Press the flash mode button (MODE) until (TTL)

2 _{is displayed on the LCD panel.}

Set the sync mode switch to leading curtain sync

3 ₍

), trailing curtain sync (

), or

contrast-control (

), according to the

subject. (Refer to page 32.)

Set the zoom position. (The setting method

4 _{differs according to your camera and lens. Refer}

ꢁ

ꢃ ꢄ

to page 21.)

Confirm that the subject is within the effective

5 _{flash range and the ready lamp is lit. Then take a}

picture.

ꢀ

● In the following cameras, if the correct flash

output is obtained, the flash mode indicator and

ꢂ

(

) in the viewfinder will blink.

35 mm single lens reflex cameras except for SF7/

SF10, 672, 645N2, 645N, 645, LX, Super A/

Super Program

For details, refer to “Auto Check Display” on

page 11.

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●Auto Flash

Refer to page 25 for the features and conditions of use

of this flash mode.

ꢄ ꢅ

ꢁ

ꢂ

ꢀ

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Set the zoom position. (The setting method

Procedure

5 _{differs according to your camera and lens. Refer}

Turn on the power switch.

to page 21.)

● Select (M.Zoom) regardless of the type of lens

being used.

Press the flash mode button (MODE) until (A) is

2 _{displayed on the LCD panel.}

Confirm that the subject is within the effective

6 _{flash range and the ready lamp is lit. Then take a}

Set the aperture value and ISO.

picture.

Press the select button (S) so that (f/stop) on

● In the following cameras, if the correct flash

output is obtained, the flash mode indicator and

the LCD panel blinks.

Turn the adjustment dial to set the aperture

value.

(

) in the viewfinder will blink.

645, LX, Super A/Super Program, MZ-M/ZX-M,

P30T, P30N/P3N, P30/P3, P50/P5, A3Date,

A3DateS, Program A/Program Plus

For details, refer to “Auto Check Display” on

page 11.

● If the power is turned temporarily OFF, the flash

will be set to P-TTL or TTL auto. Return the

setting to Auto flash.

● The effective flash range is displayed on the LCD

panel bar graph.

Confirm that the subject is within the effective

flash range and press the select button (S).

Turn the adjustment dial to set the ISO after

(ISO) starts blinking.

Press the select button (S). The setting is

complete if (ISO) stops blinking.

● The sync mode will be fixed in leading curtain

sync.

Set the lens aperture to the same aperture value

4 _{as that set on the LCD panel.}

● The camera's aperture value is synchronized

with that of the flash unit when the camera

exposure mode is set to Programmed AE or

Shutter Priority AE.

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Procedure

●Manual Flash

Refer to page 25 for the features and conditions of use

of this flash mode.

Turn on the power switch.

Press the flash mode button (MODE) to display

2 _{(M) (1/xx) on the LCD panel.}

● You can set the flash output from 1/1 to 1/64. See

page 18.

Set the zoom position. (The setting method

3 _{differs according to your camera and lens. Refer}

to page 21.)

Set the lens aperture according to the distance to

ꢁ

ꢂ ꢄ

4 _{the subject.}

Example:

If the flash zoom position is 50mm, subject distance

(between the AF540FGZ and subject) is 4 m, and

sensitivity is ISO 100, the calculation will be as

follows:

ꢀ

With flash output (1/1), the Guide No. will be 45

(according to the Guide No. table).

Aperture = Guide No. 45 / Subject distance 4 m =

11.25 Approx. 11 (f/Stop)

● Refer to page 82 for the guide number table.

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Confirm that the subject is within the effective

5 _{flash range and the ready lamp is lit. Then take a}

picture.

● In the following cameras, if the correct flash

output is obtained, the flash mode indicator and

(

) in the viewfinder will blink.

645, LX, MZ-M/ZX-M

For details, refer to “Auto Check Display” on

page 11.

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Using the Sync Mode

The AF540FGZ has the following sync modes. Select

the mode best suited for the subject.

Before photographing, confirm the following.

1. Whether your camera supports the desired sync

mode.

● Cameras that Support Each Sync Mode

(Page 62)

2. Whether you can use the desired sync mode with

the combination of your camera and the flash

mode you have set.

Trailing Curtain Sync Mode

In this sync mode, the flash is fired at the instant the

second curtain begins its travel. This mode will freeze

the subject with a blur appearing after the subject under

a slow shutter speed condition. Refer to page 33 for

instructions on how to use this sync mode.

High Speed Sync Mode

This sync mode will enable flash synchronization with

shutter speeds faster than the X-sync speed. Since

there is no sync speed limitation, high-speed sync is

effective for fill-flash in daylight. Refer to page 34 for

instructions on how to use this sync mode.

●Functions Related to Each Flash Mode

(Page 64 - 71)

3. Restrictions for the use of each sync mode.

● Sync Mode Restrictions (Page 72 - 76)

Contrast Control Sync Mode

This sync mode enables you to photograph with

multiple flash units, utilizing the difference of the light

intensity of each flash unit. The ratio of flash light

intensity between the flash unit set to this sync mode

and the other flash unit is 1:2. Refer to page 36 for

instructions on how to use this sync mode.

Leading Curtain Sync Mode

This is the most commonly used sync mode. In this

mode, the flash fires at the instant the first shutter

curtain completes its travel. You can use this mode with

the shutter speed set to the X-sync speed or slower.

Refer to page 33 for instructions on how to use this

sync mode.

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●Leading Curtain Sync Mode

Refer to page 32 for the features and conditions of use

of this sync mode.

●Trailing Curtain Sync Mode

Refer to page 32 for the features and conditions of use

of this sync mode.

Procedure

Set the power switch to the (ON) position.

Set the sync mode switch to leading curtain sync

2 ₍

Confirm that the subject is within the effective

3 _{flash range and the ready lamp is lit. Then take a}

picture.

Procedure

Set the power switch to the (ON) position.

Set the sync mode switch to trailing curtain sync

2 ₍

Confirm that the subject is within the effective

3 _{flash range and the ready lamp is lit. Then take a}

picture.

● The flash unit will switch to the trailing curtain

sync mode when the shutter release button is

pressed halfway down.

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Procedure

●High-Speed Sync Mode

Refer to page 32 for the features and conditions of use

of this sync mode.

Turn on the camera. Set the exposure mode to a

1 _{mode other than the Programmed AE.}

● As can be seen in the table on page 84, as the

shutter speed becomes faster, the guide number

becomes smaller. Accordingly, it should be

noted that the distance for taking pictures would

become shorter.

Attach the flash unit to the camera’s hot shoe and

2 _{turn it on.}

Set the sync mode switch to high-speed sync

3 ₍

● The flash will be set to high-speed sync mode

and (

) will be shown on the LCD panel only

when the shutter speed exceeds X-sync speed.

To set exposure compensation, press the select

4 _{button (S) so that (0.0) blinks. Then turn the}

adjustment dial to set the exposure

compensation amount. Press the select button

(S) again to stop the blinking.

The exposure compensation amount can be set

from +1.0 to -3.0 steps in 0.5-step increments.

(Refer to page 18.)

ꢄ ꢆ

Set the zoom position. (The setting method

ꢃ

5 _{differs according to your camera and lens. Refer}

to page 21.)

ꢂ

ꢁ

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Check the flash range by looking at the bar graph

6 _{on the LCD panel.}

Confirm that the subject is within the effective

7 _{flash range and the ready lamp is lit. Then take a}

picture.

● Please read the camera operating manual for

camera operation.

● High-speed sync is possible with the camera

separated (wireless) from the AF540GZ. (Refer to

page 46.)

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Procedure

●Contrast Control Sync Flash

Refer to page 32 for the features and conditions of use

of this sync mode.

● Refer to “Connecting the AF540FGZ with the

Extension Cord” on page 59 on using the

AF540FGZ detached from the camera.

Turn on the power switch.

Set the sync mode switch to contrast-control

2 ₍

Set the zoom position. (The setting method

3 _{differs according to your camera and lens. Refer}

to page 21.)

● If the AF540FGZ is much closer to the subject

than the flash unit to be used in combination,

use (M.Zoom) to set the zoom position to a

shorter lens focal length.

Turn on the flash units to be used in combination.

ꢂ ꢅ

● If the camera's built-in flash unit is part of the

combination, pop up the built-in flash.

ꢀ

ꢁ

Confirm that the subject is within the effective

5 _{flash range and the ready lamp is lit. Then take a}

picture.

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With a single flash

With contrast control sync flash

● If you are using a single flash unit, you can only

perform leading curtain sync photography when

the sync mode switch is set to contrast-control

(

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Advanced Functions

●Wireless Mode

With the AF540FGZ, you can take photographs with

the flash unit separated from the camera wirelessly in

P-TTL mode.

Combine the flash unit with the built-in flash unit of the

camera or another AF540FGZ attached to the camera.

● The AF360FGZ can be used interchangeably with

AF540FGZ flash units for wireless mode

photography.

Before photographing, confirm the following.

1. Whether your camera supports this function.

● Cameras that Support Wireless Mode

(page 63)

Notes on Wireless Flash Control

(P-TTL photography)

When using the AF540FGZ in wireless mode, the

following information is transferred between the flash

units attached to the camera and separated from the

camera, before the flash units are fired.

Shutter release button is fully pressed.

The flash attached to the camera emits a small

control flash (relays the flash mode of the

camera).

The external AF540FGZ emits a pre-flash

(verifies the state of the subject).

The flash attached to the camera emits a small

control flash (relays the flash output amount to

the external AF540FGZ).

2. Whether you can use this function with the

combination of your camera and the flash mode

you have set.

● The flash attached to the camera will emit a pre-

flash once more after this to relay the flash

duration time when HS (high-speed sync) is set.

The external AF540FGZ fires the main flash

(where both flash units fire main flashes, refer to

page 44).

● Functions Related to Each Flash Mode

(page 64 - 71)

3. Whether the slave mode is set to SL1.

● Slave Mode Setting (page 52)

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● Control Flash and Main Flash

The purpose of the control flash of the wireless

mode is to send information to the other flash

unit before taking a picture. The main flash fires

at the actual time a picture is taken in the same

manner as traditionally done.

● When setting up a flash unit separately from the

camera, use the off-camera shoe adapter F when

using a tripod, or the off-camera shoe clip CL-10

when setting up in another location such as

tabletop, chair, etc.

● Keep the distance from the built-in flash unit and

AF540FGZ to the subject within 4 meters.

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Using the AF540FGZ in Combination with a Built-in Flash Unit

Setting switch

● The AF540FGZ can be used in combination with

a built-in flash unit only when used with the

following cameras.

*ist D, *ist, MZ-S, MZ-L/ZX-L/MZ-6

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Firstly, set the wireless mode and channel of the

Next, remove the flash unit from the camera and

1 _{AF540FGZ, and register them on the camera.}2 _{place it in the desired position.}

Turn the camera off and then attach the

AF540FGZ to the hot shoe of the camera.

Set the power switch of the flash unit to

(WIRELESS).

Press the wireless mode button (M/C/S) the

number of times required to display SLAVE on

the LCD panel.

● Press the flash mode button (MODE) to display

(P-TTL) if the flash mode was set to the modes

other than P-TTL auto.

Enable the built-in flash unit of the camera and

3 _{set the camera flash mode to}

(WIRELESS).

Confirm that the AF540FGZ and built-in flash unit

4 _{are fully charged, and take the photograph.}

● You cannot set the flash unit to SLAVE while the

exposure metering timer is on (while information

relating to aperture etc. is displayed in the

viewfinder).

A lamp on the AF540FGZ will blink.

● In the P-TTL mode, flash output setting (1/1, 2/3,

1/2, and 1/3) and flash exposure compensation (-

3.0 to +1.0) are possible. (Refer to page 18.)

● The flash mode on the camera must be set to

(WIRELESS), otherwise the AF540FGZ will not

fire.

Slide down the setting switch to the (yellow

dot) to display the channel on the LCD panel.

Press the channel button (CH) and select a

channel from 1CH to 4CH.

Slide the setting switch back up to the (white

dot).

When you turn the camera on and press the

shutter release button halfway down, the

channel is registered on the camera.

● By changing the camera's function settings, you

can set the built-in flash unit so that it is not the

main flash. Refer to the operating manual for the

camera to find out how.

● For test flash, refer to page 58.

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When Attaching the AF540FGZ to the Camera for Control Flash

Main flash

Control flash only: not

used for main flash

Set the power switch of the flash unit to

(WIRELESS).

Press the wireless mode button (M/C/S) the

number of times required to display CONTROL

on the LCD panel.

Slide down the setting switch to the (yellow

dot) to display the channel on the LCD panel.

Press the channel button (CH) and select a

channel from 1CH to 4CH.

(Preparation of Flash Unit Attached to Camera)

Firstly, set the wireless mode and channel of the

1 _{flash unit attached to the camera, and register}

them on the camera.

Attach the AF540FGZ to the hot shoe of the

camera after turning the camera off.

Slide the setting switch back up to the (white

dot).

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 When you turn the camera on and press the

shutter release button halfway down, the

channel of the flash unit is registered on the

camera.

Next, set the channel of the separated (wireless)

2 _{flash unit to the same channel as the flash unit}

attached to the camera.

Place the other AF540FGZ in the desired

position.

(Preparation of Separated Flash Unit)

Set the power switch of the flash unit to

(WIRELESS).

Press the wireless mode button (M/C/S) the

number of times required to display SLAVE on

the LCD panel.

Slide down the setting switch to the (yellow

dot) to display the channel on the LCD panel.

Press the channel button (CH) and select the

same channel that the flash unit attached to

the camera has been set to.

Slide the setting switch back up to the (white

dot).

● The two flash units must be set to the same

channel, otherwise the separated flash unit will

not fire.

(Photographing)

Confirm that both flash units are fully charged,

3 _{and take the photograph.}

A lamp on the wireless flash unit will blink.

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When Using Both an AF540FGZ Attached to the Camera and a Separated Flash Unit as

Main Flashes

Use both flash units as main flashes

Set the power switch of the flash unit to

(WIRELESS).

Press the wireless mode button (M/C/S) the

(Preparation of Flash Unit Attached to Camera)

Firstly, set the wireless mode and channel of the

number of times required to display MASTER

on the LCD panel.

Slide down the setting switch to the (yellow

dot) to display the channel on the LCD panel.

Press the channel button (CH) and select a

channel from 1CH to 4CH.

1 _{flash unit attached to the camera, and register}

them on the camera.

Attach the AF540FGZ to the hot shoe of the

camera after turning the camera off.

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Slide the setting switch back up to the (white

dot).

 When you turn the camera on and press the

shutter release button halfway down, the

channel of the flash unit is registered on the

camera.

Next, set the channel of the separated (wireless)

2 _{flash unit to the same channel as the flash unit}

attached to the camera.

Place the other AF540FGZ in the desired

position.

Set the power switch of the flash unit to

(WIRELESS).

Press the wireless mode button (M/C/S) the

number of times required to display SLAVE on

the LCD panel.

(Preparation of Separated Flash Unit)

Slide down the setting switch to the (yellow

dot) to display the channel on the LCD panel.

Press the channel button (CH) and select the

same channel that the flash unit attached to

the camera has been set to.

Slide the setting switch back up to the (white

dot).

● The two flash units must be set to the same

channel, otherwise the separated flash unit will

not fire.

(Photographing)

Confirm that both flash units are fully charged,

3 _{and take the photograph.}

A lamp on the wireless flash unit will blink.

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Wireless High-Speed Sync Photography

(Using the AF540FGZ in Combination with a

Built-in Flash Unit)

Firstly, set the wireless mode and channel of the

1 _{AF540FGZ, and register them on the camera.}

● You cannot set the flash unit to SLAVE while the

exposure metering timer is on (while information

relating to aperture etc. is displayed in the

viewfinder).

Turn the camera off and then attach the

AF540FGZ to the hot shoe of the camera.

Set the power switch of the flash unit to

(WIRELESS).

Slide down the setting switch to the (yellow

dot) to display the channel on the LCD panel.

Press the channel button (CH) and select a

channel from 1CH to 4CH.

Press the wireless mode button (M/C/S) the

number of times required to display SLAVE on

the LCD panel.

Slide the setting switch back up to the (white

dot).

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When you turn the camera on and press the

shutter release button halfway down, the

channel is registered on the camera.

● If the shutter speed is the same or slower than

the X-sync speed of the camera, the flash will be

set to P-TTL mode, and when it is faster than X-

sync speed, the flash will be set to high-speed

sync mode.

Next, remove the flash unit from the camera and

2 _{place it in the desired position.}

● Press the flash mode button (MODE) to display

(P-TTL) if the flash mode was set to the modes

other than P-TTL.

Confirm that the AF540FGZ and built-in flash unit

7 _{are fully charged, and take the photograph.}

A lamp on the wireless flash unit will blink.

● The built-in flash unit is used for control flash

only. It will not be used for main flash.

● Refer to camera's operating manual for the

operation of the camera.

Set the zoom position. (Refer to page 21)

● Set the zoom position with (M.Zoom) regardless

of the lens you use.

Enable the built-in flash unit of the camera and

4 _{display (}

) on the LCD panel.

Set the sync mode switch of the wireless flash

5 _{unit to leading curtain sync (}

Set the exposure mode of the camera to manual

6 _{exposure and the shutter speed faster than X-}

sync speed.

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Press the wireless mode button (M/C/S) the

number of times required to select CONTROL

or MASTER.

(Using the AF540FGZ in Combination with

another AF540FGZ)

Firstly, set the wireless mode and channel of the

CONTROL: For using the flash unit attached

to the camera as the control flash.

1 _{flash unit attached to the camera, and register}

them on the camera.

MASTER: For using both flash units as main

flashes.

Turn the camera off and then attach the

AF540FGZ to the hot shoe of the camera.

Set the power switch of the flash unit to

(WIRELESS).

Slide down the setting switch to the (yellow

dot) to display the channel on the LCD panel.

Press the channel button (CH) and select a

channel from 1CH to 4CH.

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Slide the setting switch back up to the (white

dot).

When you turn the camera on and press the

shutter release button halfway down, the

channel is registered on the camera.

Set the sync mode switch of the wireless flash

3 _{unit to leading curtain sync (}

Set the exposure mode of the camera to manual

4 _{exposure and the shutter speed faster than X-}

sync speed.

Next, set the channel of the separated (wireless)

● If the shutter speed is the same or slower than

the X-sync speed of the camera, the flash will be

set to P-TTL mode, and when it is faster than X-

sync speed, the flash will be set to high-speed

sync mode.

2 _{flash unit to the same channel as the flash unit}

attached to the camera.

Place the other AF540FGZ in the desired

position.

Set the power switch of the flash unit to

(WIRELESS).

Press the wireless mode button (M/C/S) the

number of times required to display SLAVE on

the LCD panel.

Confirm that both flash units are fully charged,

5 _{and take the photograph.}

A lamp on the wireless flash unit will blink.

Slide down the setting switch to the (yellow

dot) to display the channel on the LCD panel.

Press the channel button (CH) and select the

same channel that the flash unit attached to

the camera has been set to.

Slide the setting switch back up to the (white

dot).

● The two flash units must be set to the same

channel, otherwise the separated flash unit will

not fire.

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●Slave

With the AF540FGZ, you can take photographs with

the flash unit separated from the camera wirelessly in

auto or manual mode.

Combine the flash unit with the built-in flash unit of the

camera or another flash unit attached to the camera.

Before photographing, confirm the following.

1. Whether you can use this function with the

combination of your camera and the flash mode

you have set.

● Functions Related to Each Flash Mode

(page 64 - 71)

2. Precaution When Photographing with a Slave

Flash (page 79)

● Refer to page 63 for cameras that support

wireless mode.

Procedure

Confirm that the slave mode is set to SL2. (Refer

1 _{to page 52.)}

Set the flash unit’s power switch to (WIRELESS).

Press the wireless mode button (M/C/S) the

3 _{number of times required to display SLAVE on}

the LCD panel.

Press the flash mode button (MODE) to set the

4 _{flash mode.}

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Set the zoom position to suit the subject and

● The slave unit will turn off automatically after

about 1 hour of non-operation when the auto

power off function is set.

● Do not use red-eye reduction with the camera’s

flash. This will result in the AF540FGZ firing by

the pre-flash. For the same reason, set the

camera to manual focus when firing the flash

continuously so that the AF spotbeam does not

operate with cameras that have AF spotbeam

functions.

5 _{place the flash unit at the desired location.}

● When setting up a flash unit separately from the

camera, use the off-camera shoe adapter F when

using a tripod, or the off-camera shoe clip CL-10

when setting up in another location such as

tabletop, chair, etc.

Turn the flash unit on the camera on.

● If the camera's built-in flash unit is part of the

combination, pop up the built-in flash unit.

Check that the ready lamp is lit, then take the

7 _picture.

● When the built-in flash or the external flash

attached to the camera is fully charged, the flash

icon ( )) will light up in the viewfinder and when

the AF540FGZ is fully charged, the ready lamp

on the AF540FGZ will blink.

● Position the slave unit(s) so that the slave

sensor can receive the flash fired by the

camera’s built-in flash unit or attached flash unit.

● The AF540FGZ will fire at the same time that the

camera’s flash fires.

● Keep the distance from the built-in flash unit and

AF540FGZ to the subject within 4 meters.

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Procedure

●Slave Mode Setting

To properly control the slave flash, it is necessary to set

the slave mode settings.

Slide the setting switch up.

Press the LCD panel illumination button (LIGHT)

2 _{for 2 seconds or more. SL1 will be displayed.}

Press the select button (S) to select SL 1 or

3 _{SL 2.}

SL 1: When photographing in wireless mode

SL 2: When photographing with slave flash

2 seconds

or more

● The flash will not fire properly if the slave mode

was set to the wrong mode. It may not fire at all

or may fire simultaneously with the control flash.

Press the LCD panel illumination button (LIGHT)

4 _{to finish setting.}

●

In SL 2, fluorescent lamps flicker may contribute to

flash unit’s erroneous firing on rare occasions.

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●Slow-Speed-Sync Photography

When using a normal flash to photograph a subject in a

night or evening setting, the background will appear

very dark because a normal flash light cannot

sufficiently light it. However, it is possible to balance

both subject and background by using the flash to

properly expose the foreground subject and a slow

shutter speed to expose the low light background.

Before photographing, confirm the following.

1. Whether your camera support this function

●Cameras that Support Slow-Speed-Sync Mode

(Page 64)

2. Whether you can use this function with the

combination of your camera and the flash mode

you have set.

●Functions Related to Each Flash Mode

(Page 64 - 71)

● Refer to the camera operation manual for details.

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The bounce angle can be set to the following angles.

Rightward: 0°, 30°, 60°, 90°, 120°, 150°, 180°

●Bounce Flash

With the AF540FGZ, you can tilt and swivel the flash

head to aim at the ceiling or wall to bounce the flash

before it reaches the subject. Doing so creates softer

light and shadows to make the picture look more

natural. Bouncing the flash will decrease the flash

intensity by the time it reaches the subject. Therefore,

this function is effective when photographing in P-TTL

or TTL mode at short distances.

Leftward:

Upward:

0°, 30°, 60°, 90°, 135°

0°, 30°, 45°, 60°, 75°, 90°

Downward: 0°, -10°

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● A click stop is provided for each bounce angle.

● Hold the bounce lock release button and tilt the

flash head downward when you set the bounce

Manual Flash Photography

The amount of light during bounce flash photography is

greatly affected by the condition of the reflective

surface, therefore test pictures should be taken

beforehand or changing the exposure and taking

several pictures may be recommended.

angle at -10

°.

● When using bounce flash, (

) will be displayed

on the LCD panel.

● The effective flash range will blink only when the

bounce angle is set at -10

● It is recommended to set the bounce angle at

-10 to prevent uneven exposure when the

● When taking color photographs, if the reflective

surface for the bounce flash is colored, the

picture will be affected by the color and unless

this is intentional, a white surface should be

used.

distance to the subject is within 1m.

● Bounce flash photography is greatly affected by

the surrounding conditions. A photography

manual and other references are recommended.

P-TTL, TTL Auto Flash Photography

The amount of reflective light will change according to

the condition of the reflective surface, angle, and

distance. However, with TTL auto flash units bounce

flash photography can be relatively easily done.

Confirm the flash status indicator in the viewfinder or

the auto check display in the LCD panel when taking

pictures.

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● To change the composition, raise your finger off

the shutter release button and press it halfway

down again to recompose the picture.

● When using the AF540FGZ’s built-in AF

spotbeam, the AF spotbeam built into the camera

will not operate.

● The AF spotbeam on the flash unit works

accurately only when mounted onto the camera’s

hot shoe.

●AF Spotbeam

The AF540FGZ features a built-in red spotbeam

projector to assist the autofocus system in dim light and

low-contrast conditions. When using the flash with

autofocus camera in dark conditions, the spotbeam will

be projected automatically depending on the ambient

lighting conditions. This function is activated only when

the camera is set to autofocus. By setting the flash

mode to (SB), the AF540FGZ can be used exclusively

as a focusing aid in dim light.

● The flash does not fire when using the

AF540FGZ spotbeam exclusively as a focusing

aid.

Using the AF540FGZ Spotbeam

Exclusively as a Focusing Aid

1.Set the power switch to the (ON) position.

2.Press the flash mode button (MODE) to select (SB).

3.Set the camera to the autofocus mode.

4.Press the shutter release button halfway down to let

the AF spotbeam fire.

● The AF spotbeam does not work in bright light

conditions.

● If the In-focus indicator does not light up in

several seconds, it means that the subject is

hard to autofocus. In this case, use the manual

focus mode to focus on the subject.

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2.Catchlight panel

●Wide-Angle Panel and Catchlight

A catchlight is a reflection of light source in the eyes.

It usually appears as a white dot and makes the human

subject look more lively. Set the bounce flash angle to

90° and get close to the subject before taking the

picture.

Panel

The AF540FGZ has a built-in wide-angle panel and

catchlight panel at the top of the flash head.

Execute the following if necessary.

Pull out both the wide-angle panel and catchlight

1 _panel.

Catchlight panel

Wide-angle panel

Store the panel you are not using.

2 _.

● When storing the wide-angle panel, push it

inward while holding the catchlight panel so that

it does not catch on the catchlight panel.

● When storing the catchlight panel, do so by

pushing it inward.

1.Wide-angle panel

The wide-angle panel expands flash coverage angle for

the following lenses. The flash zoom position will be

fixed at the same position as the focal length of the

lens.

13 mm for digital camera, 20 mm for 35 mm camera,

35mm for 645 camera, 55mm for 67 camera.

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Cameras Capable of Modeling Flash or

Test Flash Photography Using the Camera

Button

●Modeling Flash/Test Flash

Before taking the picture, firing a modeling flash helps

you to see how shadows are cast on the subject.

With the following cameras, a button on the camera

can be used instead of the modeling button

(MODELING) or the test button (TEST). This operation

can be carried out with either an attached flash unit or a

wireless flash unit. For information on how to arrange

this, refer to the operating manual for the camera.

Modeling Flash

Slide the setting switch down (yellow dot).

Check that the flash is ready, then press the

2 _{modeling button (MODELING). The flash will fire}

continuously for one second.

*ist D: You can use the OK button. (Refer to "Custom

Function Chart" in the camera's operating

manual.)

After firing the modeling flash, slide the setting

3 _{switch up (white dot).}

*ist:

You can use the flash pop-up button. (Refer to

"Setting the Custom Function" in the camera's

operating manual.)

● To prevent the flash tube from overheating or

deteriorating, do not fire the modeling flash more

than 10 consecutive times. After the tenth time,

let the flash unit rest for at least 10 minutes.

MZ-S: You can use the LCD illuminator button. (Refer

to "Pentax Functions" in the camera's operating

manual.)

Test Flash

Check that the flash is ready, then press the test button

(TEST). The test flash can be operated.

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● When setting up the flash unit separately from

the camera, use the off-camera shoe adapter F

when using a tripod, or the optional off-camera

shoe clip CL-10 when setting up in another

location such as tabletop, chair, etc.

●Connecting the AF540FGZ with the

Extension Cord

When using the AF540FGZ separately from the

camera connected by an extension cord, use the

optional extension cord F5P. Attach the extension cord

F5P to the camera using the optional hot shoe adapter

● The off-camera shoe adapter F cannot be

attached to the bundled stand.

or the optional hot shoe adapter F (refer to the

diagram on the right).

● When using the AF540FGZ in combination with

the built-in flash unit of the following cameras,

Hot shoe

adapter FG

Extension cord F5P

use the hot shoe adapter F . If you use the hot

shoe adapter F, the built-in flash unit will not pop

up.

*ist DL2, *ist DS2, *ist DL, *ist DS, *ist D, *ist,

MZ-L/ZX-L/MZ-6, MZ-S, MZ-60/ZX-60,

MZ-5 /ZX-5 , MZ-30/ZX-30, MZ-7/ZX-7, MZ-3,

MZ-5/ZX-5, MZ-10/ZX-10, MZ-50/ZX-50

You can use the hot shoe adapter F with any

cameras other than those above.

● The 672 does not come with a hot shoe. The

optional hot shoe grip 672 should be used.

Refer to the hot shoe grip 672 operating manual

for instructions.

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Supported Functions for Pentax Cameras

●Cameras that Support Each Flash Mode

Cameras that support each of the flash modes are listed below.

Please note that functions related to each flash mode differ. Refer to "Functions Related to Each Flash Mode" (page

64 - 71).

Flash Mode

Camera

Notes

P-TTL Auto

Flash (P-TTL)

*ist DL2, *ist DS2,

*ist DL, *ist DS, *ist D,

*ist, MZ-L/ZX-L/MZ-6,

MZ-S

- When the exposure mode is Programmed AE, Shutter Priority AE, or

Aperture Priority AE, the flash mode will automatically be switched to

(P-TTL), even if you have set it to manual (M).

- In trailing curtain sync or contrast control sync mode, the flash mode

will automatically be switched to (P-TTL) when you press the shutter

release button halfway down, even if you have set it to manual (M).

- If the camera exposure metering timer is on (information is displayed in

the viewfinder), you cannot select (A) or (M) by pressing the flash mode

button (MODE).

- Although (P-TTL) is displayed in the following cameras, the actual

photograph is taken with (TTL).

LX, Super A/Super Program, 645

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Flash Mode

Camera

Notes

TTL Auto Flash 672

(TTL)

- In trailing curtain sync or contrast control sync mode, the flash mode

will automatically be switched to (TTL) when you press the shutter

release button halfway down, even if you have set it to manual (M).

645N2, 645N,

Z/PZ series, MZ/ZX

series (except MZ-M/

- When the exposure mode is Programmed AE, Shutter Priority AE, or

Aperture Priority AE, the flash mode will automatically be switched to

(TTL), even if you have set it to manual (M).

ZX-M), SFX /SF1 ,

SFX/SF1

- In trailing curtain sync or contrast control-sync mode, the flash mode

will automatically be switched to (TTL) when you press the shutter

release button halfway down, even if you have set it to manual (M).

- If the camera exposure metering timer is on (information is displayed in

the viewfinder), you cannot select (A) or (M) by pressing the flash mode

button (MODE).

- You cannot use (TTL) with the SF7/SF10.

645, Super A/

Super Program, LX

Auto Flash (A)

Aperture setting

capable Pentax single

lens reflex cameras

- Under the following conditions, autofocus cameras can also use (A).

- The camera exposure mode is set to manual exposure.

- The camera exposure metering timer is off.

With the following combinations of cameras and exposure modes, you

cannot photograph correctly if the aperture is set to a value brighter than F2.

Camera: Z-5P, Z-5, Z-1P/PZ-1P, Z-1/PZ-1, SFX_N/SF1_N, SF7/SF10, SFX/SF1

Exposure mode: Programmed AE and Shutter Priority AE modes

Manual Flash

(M)

Aperture setting

capable Pentax single

lens reflex cameras

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●Cameras that Support Each Sync Mode

Cameras that support each of the sync modes are listed below.

Please note that the conditions under which they can be used differ depending on camera type and settings. For

details, refer to the restrictions reference pages.

Restrictions

Reference Page

Sync Mode

Camera

Leading curtain sync (

Trailing curtain sync (

)

All Pentax single lens reflex cameras provided with a hot shoe

page 72

)

Digital single lens reflex

cameras

*ist DL2, *ist DS2, *ist DL,

*ist DS, *ist D

page 72

Film cameras (medium format) 672, 645N2, 645N

Film cameras (35mm autofocus *ist, Z/PZ series, MZ/ZX series

single lens reflex cameras)

(except MZ-M/ZX-M), SFX /

SF1 , SFX/SF1, SF7/SF10

Contrast control sync

Digital single lens reflex

cameras

*ist DL2, *ist DS2, *ist DL,

*ist DS, *ist D

page 74

page 76

(

)

Film cameras (medium format) 672, 645N2, 645N

Film cameras (35mm autofocus *ist, Z/PZ series, MZ/ZX series

single lens reflex cameras)

(except MZ-M/ZX-M), SFX /

SF1 , SFX/SF1, SF7/SF10

High-speed-sync (

)

Digital single lens reflex

cameras

*ist DL2, *ist DS2, *ist DL,

*ist DS, *ist D

Film cameras (35mm autofocus *ist, MZ-S, MZ-L/ZX-L/MZ-6

single lens reflex cameras)

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●Cameras that Support Wireless Mode

Function

Camera

Notes

Wireless Mode Digital single lens reflex

*ist DL2, *ist DS2, - When photographing in wireless mode, set

(

)

cameras

*ist DL, *ist DS,

*ist D

the slave mode to SL1 (refer to page 52).

- You cannot photograph in wireless mode in

combination with the built-in flash unit with

the following cameras.

Film cameras (35mm

autofocus single lens reflex ZX-L/MZ-6

cameras)

*ist, MZ-S, MZ-L/

*ist DL2, *ist DS2, *ist DS, *ist DL

You can use the slave flash instead, if your camera does not support wireless mode. In this case, the available flash

modes are auto and manual (page 50).

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●Cameras that Support Slow-Speed-Sync Mode

Function

Camera

Notes

Slow-

Digital single lens reflex

*ist DL2, *ist DS2, *ist DL, *ist DS, Slow-speed-sync is not possible

speed-sync cameras

*ist D

in the following cameras except

with B (Bulb Exposure).

- Cameras that are not capable of

setting the shutter speed to the

same speed as the flash X-sync

speed or lower.

- Cameras in which the shutter

speed is automatically switched

to the X-sync speed when the

flash unit has finished charging.

- Cameras whose shutter speed

can be switched manually only

with B (bulb exposure).

Film cameras (35mm

autofocus single lens reflex SFX /SF1 , SFX/SF1, SF7/SF10

cameras)

*ist, MZ/ZX series, Z/PZ series,

Film cameras (medium

format)

672, 645N2, 645N, 645

Film cameras (35mm

manual focus single lens

reflex cameras)

Cameras that meet the following

conditions:

- Capable of setting the shutter

speed to the same speed as the

flash X-sync speed or lower.

- The shutter speed is not

automatically switched even if

the flash unit has finished

charging.

●Functions Related to Each Flash Mode

Supported flash modes and sync modes differ for each camera model.

Refer to the following table.

(N: usable, O: usable under certain conditions, X: unusable, -: Flash mode not supported)

* Where the flash mode is set to SB (AF spotbeam), the flash unit will not fire (refer to page 56).

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1. Cameras that Support P-TTL Auto Flash Mode

Type A (Digital single lens reflex cameras):

*ist DL2, *ist DS2, *ist DL, *ist DS, *ist D

Type B (Film cameras (35mm autofocus single lens reflex)): *ist, MZ-L/ZX-L/MZ-6, MZ-S

(P-TTL) P-TTL auto (TTL) TTL auto (A) auto flash (M) manual flash (SB) AF

Flash Mode

flash photography flash photograph

photography

spotbeam

Camera type

Leading curtain sync

Trailing curtain sync

Slow-speed-sync

High-speed sync

(A)

(B)

(A)

(B)

(A), (B)

Automatic switching to

X-sync speed when

flash is charged

Flash ready display in

viewfinder

Auto check display

Slave flash

Wireless control

Red-eye reduction

AF spotbeam

● In type A cameras, if you set the aperture of the lens to a setting other than (A), the flash mode will switch

to TTL auto.

*: The AF540FGZ can be used in combination with a built-in flash unit only when used with the following cameras.

*ist D, *ist, MZ-S, MZ-L/ZX-L/MZ-6

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2. Cameras that Support TTL Auto Flash Mode

Type A: MZ-60/ZX-60, MZ-5 /ZX-5 , MZ-30/ZX-30, MZ-7/ZX-7, Z-1/PZ-1, Z-5, Z-1P/PZ-1P, Z-5P, Z-20/PZ-20,

Z-20P, Z-50P, Z-70P, SFX/SF1, SFX /SF1

Type B: MZ-3, MZ-5/ZX-5, MZ-10/ZX-10, MZ-50/ZX-50

Type C: Z-10/PZ-10

(P-TTL) P-TTL auto (TTL) TTL auto

Flash Mode

(A) auto flash (M) manual flash (SB) AF

photography photography spotbeam

flash photography flash photograph

Camera type

Leading curtain sync

Trailing curtain sync

Slow-speed-sync

High-speed sync

(A), (B), (C)

(A)

(B)

(C)

(A) (B) (C) (A) (B) (C) (A), (B), (C)

Automatic switching

to X-sync speed when

flash is charged

Flash ready display in

viewfinder

Auto check display

Slave flash

Wireless control

Red-eye reduction

AF spotbeam

* : Only when combined with cameras provided with red-eye reduction.

* : Only when the AF540FGZ is detached from the camera and connected by an extension cord.

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Type D: 672

Type E: 645 N2, 645 N

Type F: 645

(P-TTL) P-TTL auto

flash photography flash photography photography

(TTL) TTL auto

(A) auto flash (M) manual flash

photography

(SB) AF

spotbeam

Flash Mode

Camera type

Leading curtain sync

Trailing curtain sync

Slow-speed-sync

High-speed sync

(D), (E), (F)

(D)

(E)

(F) (D) (E) (F) (D) (E) (F) (D) (E) (F)

Automatic switching

to X-sync speed

when flash is

charged

Flash ready display

in viewfinder

Auto check display

Slave flash

Wireless control

Red-eye reduction

AF spotbeam

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Type G: LX

Type H: Super A/Super Program

(P-TTL) P-TTL auto (TTL) TTL auto (A) auto flash (M) manual flash (SB) AF

Flash Mode

flash photography flash photograph

photography

spotbeam

Camera type

Leading curtain sync

Trailing curtain sync

Slow-speed-sync

High-speed sync

(G), (H)

(G)

(H)

(G)

(H)

(G)

(H)

(G), (H)

Automatic switching to

X-sync speed when

flash is charged

Flash ready display in

viewfinder

Auto check display

Slave flash

Wireless control

Red-eye reduction

AF spotbeam

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3. Cameras that Does not Support P-TTL and TTL Auto Flash Mode

Type A: SF7/SF10

(P-TTL) P-TTL auto (TTL) TTL auto (A) auto flash (M) manual flash (SB) AF

Flash Mode

flash photography flash photograph

photography

spotbeam

Camera type

Leading curtain sync

Trailing curtain sync

Slow-speed-sync

High-speed sync

(A)

Automatic switching to

X-sync speed when

flash is charged

Flash ready display in

viewfinder

Auto check display

Slave flash

Wireless control

Red-eye reduction

AF spotbeam

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Type B: MZ-M/ZX-M

Type C: P30T, P30N/P3N, P30, P50/P5, A3Date, A3DateS, Program A/Program Plus

Type D: ME, ME-Super, MG, ME-F/MEF, MV1/MV

(P-TTL) P-TTL auto

flash photography flash photograph

(TTL) TTL auto

(A) auto flash (M) manual flash

photography photography

(SB) AF

spotbeam

Flash Mode

Camera type

Leading curtain sync

Trailing curtain sync

Slow-speed-sync

High-speed sync

(B), (C), (D)

(B) (C) (D) (B) (C) (D) (B), (C), (D)

Automatic switching to

X-sync speed when

flash is charged

Flash ready display in

viewfinder

Auto check display

Slave flash

Wireless control

Red-eye reduction

AF spotbeam

* : Slow-speed-sync with B (bulb exposure) for the A3Date and A3DateS.

* : Except ME.

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Type E: 35mm single reflex cameras other than those in Type A to D, 67 camera

(P-TTL) P-TTL auto (TTL) TTL auto (A) auto flash (M) manual flash (SB) AF

Flash Mode

flash photography flash photograph

photography

spotbeam

Camera type

Leading curtain sync

Trailing curtain sync

Slow-speed-sync

High-speed sync

(E)

Automatic switching to

X-sync speed when

flash is charged

Flash ready display in

viewfinder

Auto check display

Slave flash

Wireless control

Red-eye reduction

AF spotbeam

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●Sync Mode Restrictions

Leading Curtain Sync Photography (

)

This sync mode can be used with all Pentax single lens reflex cameras provided with a hot shoe. However, there are

restrictions depending on camera type and settings.

Camera Model

Camera Settings

Restrictions

Z-1/PZ-1, Z-5, Z-1P/PZ-1P, Exposure mode: Programmed AE

The minimum shutter speed varies

depending on the focal length of the lens

you are using.

Z-5P

(Hyper Program), Hyper Program

Aperture Priority AE, Aperture Priority

AE, Hyper Manual by pressing IF button

Exposure mode: Hyper Program Shutter The minimum shutter speed changes

Priority AE

depending on the ambient brightness.

SFX /SF1

Exposure mode: Programmed AE,

Shutter Priority AE

The shutter speed changes to within

1/60 to 1/125 sec.

Exposure mode: Aperture Priority AE

The shutter speed is fixed at 1/125 sec.

Trailing Curtain Sync Photography (

)

Cameras that support this sync mode are as follows.

The shutter speeds that can be used differ according to the type of camera.

Camera Category

Camera Model

*ist DL2, *ist DS2, *ist DL, *ist DS 1/90 sec. or slower

Shutter Speed

Digital single lens

reflex cameras

*ist D

1/60 sec. or slower

Film cameras

(medium format)

672

1/15 sec.fixed (in Aperture Priority AE)

1/15 sec. or slower (in manual exposure)

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Camera Category

Camera Model

645N2, 645N

Shutter Speed

Film cameras

1/45 sec. fixed (in Programmed AE and Aperture Priority AE)

(medium format)

1/45 sec. or slower (in Shutter Priority AE and manual

exposure)

Film cameras

MZ-S

1/90 sec. or slower

(35mm autofocus

single lens reflex)

Z-1/PZ-1, Z-5, Z-1P/PZ-1P, Z-5P 1/125 sec. or slower (in Programmed AE and Aperture

Priority AE in Hyper Progam)*

1/125 sec. or slower (in Shutter Priority AE in Hyper

Program)*

Z-10/PZ-10

1/60 sec. fixed (in Programmed AE)

1/60 sec. or slower (in manual exposure)

SFX /SF1 , SFX/SF1, SF7/SF10 1/60 sec. fixed (in Programmed AE, Shutter Priority AE

and Aperture Priority AE)

1/60 sec. or slower (in manual exposure)

35mm autofocus single lens reflex 1/60 sec. or slower

cameras other than those above

*1: The minimum shutter speed varies depending on the focal length of the lens you are using.

*2: The minimum shutter speed varies depending on ambient light.

● Under the following condition, the flash mode automatically switches to P-TTL auto flash:

the flash mode is set to manual flash (M), and the sync mode is set to trailing curtain sync (

● (

) is displayed on the LCD panel only in the following case:

The shutter release button of the camera is pressed halfway, and the camera exposure metering timer is

on (information is displayed in the viewfinder).

● The built-in flash units of the following cameras do not have the trailing curtain sync function. When used

in combination with the AF540FGZ, the built-in flash unit does not fire - only the external flash unit fires.

SFX/SF1, SFX /SF1 , SF7/SF10, Z-10/PZ-10

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Contrast Control Sync Photography (

)

Flash units that support this sync mode are as follows.

However, the flash modes, cameras, and camera shutter speeds that can be used differ depending on the flash unit.

Set the shutter speed to the speed shown in the shutter speed column below.

Flash Unit

Flash Mode

P-TTL auto flash

(Even if you set the flash to another MZ-S, MZ-L/ZX-L/MZ-6

flash mode, the photograph is

Camera Model

AF540FGZ, AF360FGZ,

built-in flash units

*ist DL2, *ist DS2, *ist DL, *ist DS, *ist D, *ist,

automatically taken in P-TTL auto

flash mode.)

AF330FTZ, AF500FTZ,

AF400FTZ, AF240FT

TTL auto flash

672, 645N2, 645N, or any 35mm autofocus

(Even if you set the flash to another single lens reflex camera

flash mode, the photograph is

automatically taken in TTL auto

flash mode.)

Camera Category

Camera Model

Shutter Speed

Digital single lens reflex

cameras

*ist DL2, *ist DS2, *ist DL, *ist DS

1/180 sec. or slower

*ist D

1/150 sec. or slower

Film cameras (medium

format)

672

1/15 sec. fixed (in Aperture Priority AE)

1/15 sec. or slower (in manual exposure)

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Camera Category

Camera Model

645N2, 645N

Shutter Speed

Film cameras (medium

format)

1/45 sec. fixed (in Programmed AE and Aperture

Priority AE)

1/45 sec. or slower (in Shutter Priority AE and

manual exposure)

Film cameras (35mm

autofocus single lens

reflex cameras)

Z-1/PZ-1, Z-1P/PZ-1P, Z-5, Z-5P

Z-10/PZ-10

1/60 sec. fixed (in Programmed AE and Aperture

Priority AE in Hyper Program)*

1/60 sec. or slower (in Shutter Priority AE in

Hyper Program)*

1/60 sec. fixed (in Programmed AE)

1/60 sec. or slower (in manual exposure)

1/60 sec. fixed (in Programmed AE)

1/60 sec. or slower (in manual exposure)

1/60 sec. or slower

SFX /SF1 , SFX/SF1, and SF7/

SF10

All 35mm autofocus single lens

reflex cameras other than above

*1: The minimum shutter speed varies depending on the focal length of the lens you are using.

*2: The minimum shutter speed varies depending on ambient light.

● The flash mode automatically switches to P-TTL auto under the following condition:

When the flash mode is set to manual flash (M), and the sync mode is set to contrast control sync

(

● (

) is displayed on the LCD panel only in the following case:

The shutter release button of the camera is pressed halfway, and the camera exposure metering timer is

on (information is displayed in the viewfinder).

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High-Speed-Sync Mode Photography (

)

Cameras that support this sync mode are as follows. Be sure to set your camera according to the following settings:

- Shutter speed: faster than flash unit's X-sync speed

- Exposure mode: Tv (Shutter Priority), Av (Aperture Priority), M (manual)

Exposure modes other than the above are not compatible with this sync mode. Refer to the

Exposure Modes Not Supported by High-Speed Sync Mode column.

Exposure Modes Not Supported

Camera Model

Notes

by High-Speed Sync Mode

*ist DL2, *ist DS2,

*ist DL, *ist DS, *ist, (except *ist and MZ-L/ZX-L/MZ-6), SCN

AUTO PICT, , P

MZ-L/ZX-L/MZ-6

(*ist DL2), B (Bulb Exposure) modes

*ist D

Green, P (Hyper Program) (when

programmed AE is activated) and B

(Bulb Exposure) modes

You can photograph in high-speed-sync mode

using the following method when the camera is in

P (Hyper Program) mode.

- Set the camera using the Av dial or Tv dial so

that the shutter speed is faster than 1/150 sec.

MZ-S

P (Programmed AE) mode, B (Bulb

Exposure) mode

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Slow-Speed-Sync Photography Restrictions

Be sure to set the camera as follows.

- Shutter speed: slower than flash unit's X-sync speed

- Exposure mode: manual exposure, Shutter Priority AE, (except 645, SFX /SF1 , SFX/SF1 and SF 7/SF10), B

(Bulb Exposure)

Exposure modes other than the above are not compatible with this photographic method. Refer to

the Exposure Modes Not Supported by Slow-Speed-Sync Photography column.

You cannot perform slow-speed-sync photography with settings other than B (Bulb Exposure) with the following

cameras:

- Cameras that are not capable of setting the shutter speed to the flash X-sync speed or slower

- Cameras in which the shutter speed is automatically switched to the X-sync speed when the flash unit has been

charged.

Exposure Modes Not Supported by

Slow-Speed-Sync Photography

Camera Model

Notes

*ist DL2, *ist DS2, *ist DL,

*ist DS, *ist, MZ-L/ZX-L/MZ-6, P (except *ist and MZ-L/ZX-L/MZ-6), SCN

AUTO PICT,

MZ-7/ZX-7

(*ist DL2), Av (Aperture Priority) modes

*ist D

Green, P (Hyper Program) (when

programmed AE is activated) and Av

(Aperture Priority) modes

You can perform slow-speed-sync

photography using the following

method when the camera is in P

(Hyper Program) mode.

- Set the camera using the Av dial or

Tv dial so that the shutter speed is

slower than 1/150 sec.

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Exposure Modes Not Supported by

Slow-Speed-Sync Photography

Camera Model

MZ-S, MZ-5 /ZX-5 , MZ-3,

MZ-5/ZX-5, MZ-M/ZX-M,

Z-50P, Program A/

Program Plus

Notes

P (Programmed AE) and Av (Aperture

Priority) modes

MZ-50/ZX-50

MZ-30/ZX-30

PICT and Av (Aperture Priority) modes

, Av (Aperture Priority)

modes

MZ-10/ZX-10

Auto picture, PICT, and Av (Aperture

Priority) modes

Z-1P/PZ-1P, Z-5P, Z-5,

Z-1/PZ-1

HyP (Hyper Program), Programmed AE

mode, Av (Aperture Priority), and HyM

(Hyper Manual) modes by pressing IF

button

You can perform slow-speed-sync

photography using the following

method when the camera is in HyP

(Hyper Program) mode.

- Set the camera using the Av dial or

Tv dial so that the shutter speed is

slower than 1/250 sec.

Z-20P, Z-70P, Z-20/PZ-20

Z-10/PZ-10

Green, Picture, and Av (Aperture Priority)

modes

P (Programmed AE) mode

645, SFX /SF1 , SFX/SF1,

SF7/SF10, Super A/

Super Program

Programmed AE, Aperture Priority AE and

Shutter Priority AE modes

Aperture Priority AE mode

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●Precautions When Photographing with a Slave Flash

● Be sure to set the camera as follows:

- Exposure mode: M (manual) or B (Bulb Exposure)

* Exposure modes other than those above are not compatible with this photographic method.

● Set the slave mode of the flash unit to SL 2 (refer to page 52).

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Flash Effective Range

However, if the minimum distance obtained is 0.7m or

less, the minimum distance will be 0.7m. Refer to page

82 for the guide number table.

●Calculating the Flash Effective

Range

When setting the lens to manual f/stop, calculate the

guide number at full flash with the use of flash's zoom

position and ISO. Divide the resulting guide number by

the aperture in use. Thus, the maximum distance is

obtained. The minimum distance is obtained in dividing

this max. distance by approx. 10.

Example:

With a 85 mm lens at f/4 and sensitivity at ISO100

 For the zoom position 85mm and sensitivity at ISO100, the guide number is 54.

 54 (guide number) /4 (aperture) = 13.5m (max. distance)

 13.5m (max. distance) /10 = 1.35m (min. distance) Thus, flash effective range is approx. 1.35m - 13.5m.

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Effective flash range indicator

Display of Flash Effective Range

The shooting distance parameters will be displayed on

the LCD panel. Make sure that you are within the flash

effective range before taking pictures.

● The effective flash range is displayed for the

following camera and lens combinations.

Camera

*ist D series

Lens Types

DA, D FA, FA J, FA, F,

35mm autofocus single

lens reflex cameras

(except for SF series)

D FA, FA J, FA, F, A

FA645

645N2, 645N

If the maximum distance exceeds 22 meters,

) will blink. If the minimum distance is 0.7m

or less, ( ) will blink.

(

● The flash effective range varies depending on

ISO, lens aperture in use, and/or the zoom

position (flash coverage angle). Keep this in

mind especially when you are using a variable

aperture zoom lens.

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●

Depending on the camera and lens you are using,

the effective flash range may be displayed. (Refer to

page 81.)

●Guide Number (GN)

Guide numbers indicate flash light intensity. The larger

the number, the farther you can reach with your flash.

From the guide number, you can easily obtain the

proper aperture setting required for an optimum

exposure.

Aperture (f/stop) =

GN/flash-to-subject distance (m)

Guide Number Table

*With the wide-angle panel attached

Camera format

Zoom position

Flash

light

intensity

35mm

645

85mm

70mm

50mm

35mm

28mm

55mm

70mm

19mm

24.5

24mm *20mm

45mm *35mm

60mm *55mm

16mm *13mm

ISO

150mm 135mm 100mm 70mm

190mm 180mm 120mm 90mm

58mm

13.5

9.5

DIGITAL

48mm

24.5

34mm

22.5

24mm

27.5

19.5

13.5

9.5

1/1

1/2

1/4

22.5

14.5

ISO100

1/8

1/16

1/32

1/64

8.5

4.2

7.5

3.5

2.4

8.5

5.6

6.5

4.6

6.7

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Camera format

Zoom position

50mm 35mm 28mm

Flash

light

intensity

35mm

645

85mm

70mm

24mm *20mm

45mm *35mm

60mm *55mm

16mm *13mm

ISO

150mm 135mm 100mm 70mm

190mm 180mm 120mm 90mm

55mm

70mm

19mm

DIGITAL

1/1

58mm

48mm

34mm

24mm

22.5

7.5

22.5

14.5

1/2

1/4

1/8

1/16

1/32

1/64

1/1

1/2

1/4

13.5

9.5

108

24.5

8.5

100

22.5

24.5

8.5

27.5

19.5

13.5

9.5

6.5

27.5

19.5

13.5

9.5

ISO200

3.5

14.5

ISO400

1/8

22.5

24.5

1/16

1/32

1/64

13.5

24.5

7.5

8.5

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High-Speed Sync Guide Number

*With the wide-angle panel attached

Zoom position

Camera format

Shutter

ISO

35mm

85mm

58mm

24.2

18.8

10.2

7.3

6.2

34.2

26.5

19.8

14.4

10.4

8.8

48.4

37.6

70mm

48mm

22.4

17.4

9.5

6.8

5.7

31.6

24.6

18.4

13.4

9.6

50mm

34mm

20.1

15.6

11.7

8.5

35mm

24mm

17.5

13.6

10.1

7.4

28mm

19mm

15.7

12.2

9.1

24mm *20mm

16mm *13mm

speed

DIGITAL

250

14.3

11.1

8.3

9.4

7.3

5.5

500

1000

ISO100

2000

4000

6000

250

6.6

6.1

5.2

5.3

4.5

4.8

4.0

22.2

17.2

12.8

9.4

4.3

3.7

20.3

15.7

11.7

8.6

2.9

2.4

13.3

10.3

7.7

5.6

4.0

3.4

18.8

14.6

28.5

22.1

16.5

12.0

8.6

24.7

19.2

14.3

10.4

7.5

500

1000

ISO200

2000

4000

6000

250

6.7

5.7

6.1

5.2

28.6

22.2

16.6

8.1

7.3

6.3

44.8

34.8

13.6

11.5

40.2

31.2

23.4

12.2

10.3

31.4

24.4

18.2

13.2

9.6

500

27.2

20.2

14.8

10.6

8.9

1000

ISO400

2000

4000

6000

20.4

14.6

12.4

5.8

4.8

8.6

7.3

8.0

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●P-TTL and TTL Auto Flash Effective Range

Zoom position

Camera

format

ISO 100

ISO 200

35mm 20mm 24mm 28mm 35mm 50mm 70mm 85mm 20mm 24mm 28mm 35mm 50mm 70mm 85mm

645

35mm 45mm 55mm 70mm 100mm 135mm 150mm 35mm 45mm 55mm 70mm 100mm 135mm 150mm

55mm 60mm 70mm 90mm 120mm 180mm 190mm 55mm 60mm 70mm 90mm 120mm 180mm 190mm

DIGITAL 13mm 16mm 19mm 24mm 34mm 48mm 58mm 13mm 16mm 19mm 24mm 34mm 48mm 58mm

f/1.2

f/1.4

f/2

1.8 - 17.5 2.6 - 26.6 2.9 - 29.1 3.3 - 32.5 3.7 - 37.0 4.2 - 41.6 4.5 - 45.0 2.5 - 25.0 3.8 - 37.5 4.1 - 40.8 4.6 - 45.8 5.4 - 53.3 6.0 - 59.1 6.4 - 63.3

1.5 - 15.0 2.3 - 22.8 2.5 - 25.0 2.8 - 27.8 3.2 - 32.0 3.6 - 35.7 3.9 - 38.5 2.2 - 21.4 3.3 - 32.1 3.5 - 35.0 4.0 - 39.2 4.6 - 45.7 5.1 - 50.7 5.5 - 54.2

1.1 - 10.5 1.6 - 16.0 1.8 - 17.5 2.0 - 19.5 2.3 - 22.5 2.5 - 25.0 2.7 - 27.0 1.5 - 15.0 2.3 - 22.5 2.5 - 24.5 2.8 - 27.5 3.2 - 32.0 3.6 - 35.5 3.8 - 38.0

0.8 - 7.5 1.2 - 11.4 1.3 - 12.5 1.4 - 13.9 1.6 - 16.0 1.8 - 17.8 2.0 - 19.2 1.1 - 10.7 1.6 - 16.0 1.8 - 17.5 2.0 - 19.6 2.3 - 22.8 2.6 - 25.3 2.8 - 27.1

0.7 - 5.2 0.8 - 8.0 0.9 - 8.7 1.0 - 9.8 1.1 - 11.0 1.3 - 12.5 1.4 - 13.5 0.8 - 7.5 1.2 - 11.2 1.3 - 12.2 1.4 - 13.7 1.6 - 16.0 1.8 - 17.7 1.9 - 19.0

0.7 - 3.7 0.7 - 5.7 0.7 - 6.2 0.7 - 7.0 0.8 - 8.0 0.9 - 8.9 1.0 - 9.6 0.7 - 5.3 0.8 - 8.0 0.9 - 8.7 1.0 - 9.8 1.2 - 11.4 1.3 - 12.6 1.4 - 13.5

0.7 - 2.6 0.7 - 4.0 0.7 - 4.3 0.7 - 4.8 0.7 - 5.6 0.7 - 6.2 0.7 - 6.7 0.7 - 3.7 0.7 - 5.6 0.7 - 6.1 0.7 - 6.8 0.8 - 8.0 0.9 - 8.8 1.0 - 9.5

0.7 - 1.9 0.7 - 2.9 0.7 - 3.1 0.7 - 3.5 0.7 - 4.0 0.7 - 4.5 0.7 - 4.9 0.7 - 2.7 0.7 - 4.0 0.7 - 4.4 0.7 - 5.0 0.7 - 5.8 0.7 - 6.4 0.7 - 6.9

0.7 - 1.3 0.7 - 2.0 0.7 - 2.1 0.7 - 2.4 0.7 - 2.8 0.7 - 3.1 0.7 - 3.3 0.7 - 1.8 0.7 - 2.8 0.7 - 3.0 0.7 - 3.4 0.7 - 4.0 0.7 - 4.4 0.7 - 4.7

0.7 - 0.9 0.7 - 1.4 0.7 - 1.6 0.7 - 1.7 0.7 - 2.0 0.7 - 2.2 0.7 - 2.4 0.7 - 1.3 0.7 - 2.0 0.7 - 2.2 0.7 - 2.5 0.7 - 2.9 0.7 - 3.2 0.7 - 3.4

0.7 - 0.7 0.7 - 1.0 0.7 - 1.0 0.7 - 1.2 0.7 - 1.4 0.7 - 1.5 0.7 - 1.6 0.7 - 0.9 0.7 - 1.4 0.7 - 1.5 0.7 - 1.7 0.7 - 2.0 0.7 - 2.2 0.7 - 2.3

f/2.8

f/4

f/stop

f/5.6

f/8

f/11

f/16

f/22

f/32

(Unit: m)

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Zoom position

ISO 400

Camera

format

35mm 20mm 24mm 28mm 35mm 50mm 70mm 85mm

645

35mm 45mm 55mm 70mm 100mm 135mm 150mm

55mm 60mm 70mm 90mm 120mm 180mm 190mm

DIGITAL 13mm 16mm 19mm 24mm 34mm 48mm 58mm

f/1.2

f/1.4

f/2

3.5 - 35.0 5.4 - 53.3 5.9 - 58.3 6.5 - 65.0 7.5 - 75.0 8.4 - 83.3 9.0 - 90.0

3.0 - 30.0 4.6 - 45.7 5.0 - 50.0 5.6 - 55.7 6.5 - 64.2 7.2 - 71.4 7.8 - 77.1

2.1 - 21.0 3.2 - 32.0 3.5 - 35.0 3.9 - 39.0 4.5 - 45.0 5.0 - 50.0 5.4 - 54.0

1.5 - 15.0 2.3 - 22.8 2.5 - 25.0 2.8 - 27.8 3.3 - 32.1 3.6 - 35.7 3.9 - 38.5

1.1 - 10.5 1.6 - 16.0 1.8 - 17.5 2.0 - 19.5 2.3 - 22.5 2.5 - 25.0 2.7 - 27.0

0.8 - 7.5 1.2 - 11.4 1.3 - 12.5 1.4 - 13.9 1.6 - 16.0 1.8 - 17.8 2.0 - 19.2

0.7 - 5.2 0.8 - 8.0 0.9 - 8.7 1.0 - 9.7 1.2 - 11.2 1.3 - 12.5 1.4 - 13.5

0.7 - 3.8 0.7 - 5.8 0.7 - 6.3 0.7 - 7.0 0.9 - 8.1 0.9 - 9.0 1.0 - 9.8

0.7 - 2.6 0.7 - 4.0 0.7 - 4.3 0.7 - 4.8 0.7 - 5.6 0.7 - 6.2 0.7 - 6.7

0.7 - 1.9 0.7 - 2.9 0.7 - 3.1 0.7 - 3.5 0.7 - 4.0 0.7 - 4.5 0.7 - 4.9

0.7 - 1.3 0.7 - 2.0 0.7 - 2.1 0.7 - 2.4 0.7 - 2.8 0.7 - 3.1 0.7 - 3.3

f/2.8

f/4

f/stop

f/5.6

f/8

f/11

f/16

f/22

f/32

(Unit: m)

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Optional Accessories

A number of dedicated accessories are available for this flash unit.

TR Power Pack-3 (Upcoming product)

External power source which supplies power from six

C-size batteries.

Hot Shoe Adapter F

Adapter for connecting the camera and extension cord

F5P. It also has a hot shoe on its top.

Off-camera Shoe Clip CL-10

Setting clip for using the AF540FGZ as a wireless slave

flash.

Extension Cord F5P

0.5m/1.5m/L(Approx.3m)

5P synchro cord to use a flash unit for single lens reflex

camera, such as the AF540FGZ or AF360FGZ,

separately from the camera. It is used in combination

Hot Shoe Adapter F

Adapter for using the AF540FGZ as a separate flash

unit using the extension cord F5P. It can be used in

combination with the built-in flash unit.

with the hot shoe adapter F , hot adapter shoe F, or off

camera shoe adapter F.

Hot Shoe Grip 672

Off camera shoe adapter F

Adapter for positioning a flash unit such as the

AF540FGZ or AF360FGZ alongside the camera body.

It connects to the 672's 5P sync terminal with the

included 5P Sync Cord.

Adapter for attaching an external flash unit, etc. on a

tripod separated from the camera. It comes with a

connector for the extension cord F5P.

● The off-camera shoe adapter F cannot be

attached to the bundled stand.

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Specifications

Type

Guide No.

Clip-on, TTL auto zoom flash unit with serial control

Maximum 54 (ISO 100/m). In manual mode, seven-step adjustment from M1/1 to M1/64. The

focal lengths in the table below are for 35 mm single lens reflex cameras. (when using 35mm

format camera)

*Wide-angle panel used

(ISO 100)

Focal Length (Zoom position) 85mm 70mm 50mm 35mm 28mm 24mm 20mm*

(M1/1) (=FULL)

(M1/2)

27.5

19.5

13.5

9.5

24.5

8.5

22.5

7.5

14.5

(M1/4)

(M1/8)

(M1/16)

(M1/32)

(M1/64)

13.5

9.5

6.7

24.5

22.5

8.5

5.6

6.5

4.6

3.5

2.4

4.2

3.5

Focal Length (Zoom position) 85mm 70mm 50mm 35mm 28mm 24mm 20mm*

(ISO 200)

(M1/1) (=FULL)

(M1/2)

22.5

14.5

(M1/4)

(M1/8)

24.5

8.5

27.5

19.5

13.5

9.5

24.5

22.5

(M1/16)

(M1/32)

(M1/64)

13.5

9.5

8.5

7.5

3.5

6.5

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Focal Length (Zoom position) 85mm 70mm 50mm 35mm 28mm 24mm 20mm*

(ISO 400)

(M1/1) (=FULL)

(M1/2)

108

100

27.5

19.5

13.5

9.5

24.5

22.5

14.5

(M1/4)

(M1/8)

(M1/16)

(M1/32)

(M1/64)

13.5

24.5

22.5

8.5

7.5

Flash duration (1/2 peak each)

Recycling time/Total number

of flashes

(M1/1) flash: Approx. 1/1200 sec. (TTL) Fastest duration time: Approx. 1/20000 sec.

Battery type Recycling time Total number of flashes

Alkaline (LR6)

Approx. 6 sec.

Approx. 200

Approx. 250

Approx. 350

Nickel-Metal Hydride (Ni-MH) (2500mAH)

Lithium (FR6)

Consecutive Discharge

Flash Coverage Angle

Approx. 2 frames/sec. for 50 times, at M 1/16 output (with alkaline LR-6 batteries)

Auto zoom enabled with autofocus compatible camera and lens combination.

*Wide-angle panel used.

Zoom position

Vertical Coverage

Horizontal Coverage

(7 step zoom)

85mm 70mm 50mm 35mm 28mm 24mm 20mm*

23°

31°

26°

36°

34°

46°

45°

60°

53°

70°

60°

78°

85°

98°

Color temperature

Effective flash range

AF spotbeam

Daylight (Suited for daylight color film)

Approx. 0.8 m - 8.0 m (Guide No. 45, ISO 100, f/5.6)

Red beam emitted under low light or low-contrast conditions.

Effective range: Approx. 1 m - 7 m (According to Pentax’s testing conditions.)

Film speed setting

ISO 25 - 1600

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Flash modes

P-TTL auto, TTL auto, auto, manual.

Flash exposure

compensation

In P-TTL mode, -3.0 to +1.0 levels (0.5 step increments)

Flash output setting

Wireless master, slave: (1/1 ● 2/3 ● 1/2 ●1/3)

Manual: (1/1 ● 1/2 ● 1/4 ● 1/8 ● 1/16 ● 1/32 ● 1/64)

Flash sync mode

Wireless flash

Leading curtain sync, Trailing curtain sync, Contrast control sync, High-speed-sync.

(Control system) Optical pulse transmission

(Wireless position) Master (M), control (C), slave (S)

(Channels) 1 to 4

Compatible modes: P-TTL, auto (A), manual (M)

Effective range: Approx. 4 m (When set to SL 1. According to Pentax testing conditions.)

Bounce flash

Power saving

Vertical and horizontal bounce possible, click stops provided, lock provided at 0°.

Rightward: 0°, 30°, 60°, 90°, 120°, 150°, 180°

Leftward: 0°, 30°, 60°, 90°, 135°

Upward: 0°, 30°, 45°, 60°, 75°, 90°

Downward: 0°, -10°

Automatic power-off: After approx. 3 min. of non-operation with the power (ON). 6

minutes in Auto. After 1 hour in the wireless mode.

Quick power on: By pressing the camera’s shutter release button halfway

Red-eye reduction

Modeling flash

Operates with autofocus cameras equipped with red-eye reduction feature.

Modeling button (MODELING) fires flash consecutively for 1 second.

Wide-angle panel

Catchlight panel

Pull out manually and flash zoom position sets to 20mm.

Pull out manually.

LCD panel illumination

LCD panel illumination button (LIGHT) illuminates the LCD panel for about 10 sec. or press

the button again to turn it off.

Power source

Size-AA batteries × 4, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6))

Optional external power source: TR Power Pack-3 (Upcoming product)

Dimensions and weight

76 mm (W) × 142 mm (H) × 107 mm (T) (3.0'' × 5.6'' × 4.2'')

380 g (13.4 oz.) without batteries

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Warranty Policy

All Pentax cameras purchased through authorized bona fide photographic distribution channels are guaranteed against

defects of material or workmanship for a period of twelve months from date of purchase. Service will be rendered, and

defective parts will be replaced without cost to you within that period, provided the equipment does not show evidence of

impact, sand or liquid damage, mishandling, tampering, battery or chemical corrosion, operation contrary to operating

instructions, or modification by an unauthorized repair shop. The manufacturer or its authorized representatives shall not be

liable for any repair or alterations except those made with its written consent and shall not be liable for damages from delay

or loss of use or from other indirect or consequential damages of any kind, whether caused by defective material or

workmanship or otherwise; and it is expressly agreed that the liability of the manufacturer or its representatives under all

guarantees or warranties, whether expressed or implied, is strictly limited to the replacement of parts as herein before

provided. No refunds will be made on repairs performed by non-authorized Pentax service facilities.

Procedure During 12-month Warranty Period

Any Pentax which proves defective during the 12-month warranty period should be returned to the dealer from whom you

purchased the equipment or to the manufacturer. If there is no representative of the manufacturer in your country, send the

equipment to the manufacturer, with postage prepaid. In this case, it will take a considerable length of time before the

equipment can be returned to you owing to the complicated customs procedures required. If the equipment is covered by

warranty, repairs will be made and parts replaced free of charge, and the equipment will be returned to you upon completion

of servicing. If the equipment is not covered by warranty, regular charges of the manufacturer or of its representatives will

apply. Shipping charges are to be borne by the owner. If your Pentax was purchased outside of the country where you wish

to have it serviced during the warranty period, regular handling and servicing fees may be charged by the manufacturer’s

representatives in that country. Notwithstanding this, your Pentax returned to the manufacturer will be serviced free of charge

according to this procedure and warranty policy.

In any case, however, shipping charges and customs clearance fees are to be borne by the sender. To prove the date of your

purchase when required, please keep the receipts or bills covering the purchase of your equipment for at least a year. Before

sending your equipment for servicing, please make sure that you are sending it to the manufacturer’s authorized

representatives or their approved repair shops, unless you are sending it directly to the manufacturer. Always obtain a

quotation for the service charge, and only after you accept the quoted service charge, instruct the service station to proceed

with the servicing.

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This warranty policy does not affect customer’s statutory rights.

The local warranty policies available from Pentax distributors in some countries can supersede this warranty policy.

Therefore, we recommend that you review the warranty card supplied with your product at the time of purchase, or contact

the PENTAX distributor in your country for more information and to receive a copy of the warranty policy.

For customers in the USA

STATEMENT OF FCC COMPLIANCE

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may

not cause harmful interference, and (2) this device must accept any interference received, including interference that may

cause undesired operation.

Changes or modifications not approved by the party responsible for compliance could void the user’s authority to operate the

equipment.

This equipment has been tested and found comply with the limits for a Class B digital device, pursuant to part 15 of the FCC

Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

This equipment generates, uses and can radiate frequency energy and, if not installed and used in accordance with the

instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will

not occur in a particular installation. If this equipment does not cause harmful interference to radio or television reception,

which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one

or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Consult the dealer or an experienced radio/TV technician for help.

For customers in Canada

This Class B digital apparatus meets all requirements of the Canadian Interference - Causing Equipment Regulations.

Pour les utilisateurs an Canada

Cet appareil numèique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

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Information on disposal for users

2. In other countries outside the EU

1. In the European Union

If you wish to discard this product, please contact your local

authorities and ask for the correct method of disposal.

If your product is marked with this symbol, it

means that used electrical/electronic

products should not be mixed with general

household waste. There exists a separate

collection system for these products.

For Switzerland: Used electrical/electronic equipment can

be returned free of charge to the dealer, even when you

don’t purchase a new product. Further collection facilities

are listed on the home page of www.swico.ch or

www.sens.ch

Used electric/electronic equipment must be treated

separately and in accordance with legislation that requires

proper treatment, recovery and recycling of these products.

Following the implementation by member states, private

households within the EU states may return their used

electrical/electronic equipments to designated collection

facilities free of charge*. In some countries your local

retailer may also take back your old product free of charge

if you purchase a similar new one.

*Please contact your local authority for further details.

By disposing of this product correctly you will help ensure

that the waste undergoes the necessary treatment,

recovery and recycling and thus prevent potential negative

effects on the environment and human health which could

otherwise arise due to inappropriate waste handling.

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