Sony EVI D70 User Manual

A-BS4-100-11 (1)

Color Video Camera

Technical Manual

EVI-D70/D70P

 2003 Sony Corporation

Overview

Features

• An EXview HAD CCD provides 380,000 (EVI-D70)/

410,000 (EVI-D70P) effective picture elements

(pixels) enabling high-resolution imaging with this

camera.

• The use of VISCA commands allows you to control

the camera from a computer.

• High-speed, wide angle PAN and TILT functions and

Image Flip (turning the displayed image upside

down) allow the unit to be mounted on the ceiling,

broadening the range of uses for this versatile camera.

• With the addition of external RS-232C

communication, RS-422 and VISCA commands

provide the ability to remotely control this camera

from greater distances.

• The lens offers an18x optical zoom feature.

• Use of a newly developed digital signal processor

(DSP) improves the image quality of the digital zoom

feature.

• An IR (infrared) cut filter can be physically removed.

In addition, it can be switched on and off

automatically, providing the optimum image quality

for your subjects, whether they require high

resolution or are poorly lit.

• Up to six combinations of camera position and

settings can be retained in memory and called up

when needed.

• A multi-function Remote Commander is also

provided.

Connection

Video cable

(not supplied)

to Video

input

to VIDEO

S-Video cable

(not supplied)

S-Video

input

to S VIDEO

VISCA cable

(not supplied) ¹⁾

to VISCA RS-232C IN

to RS-232C

To VISCA IN of

other EVI-D70/

D70Ps (when

to VISCA

RS-232C OUT

Computer, TV or

VCR with a video

input jack

connecting to more

than one camera)

to VISCA RS-422 ²⁾

AC power adaptor

MPA-AC1 (supplied)

to AC outlet

to DC IN 12V

Power cord (supplied)

1) When the camera is connected to a computer with a VISCA cable (cross type, RS-232C), you can operate

the camera with the computer. To obtain a cable, consult the dealer where you bought your camera.

2) For more detail on the VISCA RS-422 connection, see page 36.

Notes

• You cannot connect your Color Video Camera to a

computer that is not equipped with either video input or an

S-Video input connector. You might not be able to use

your existing computer with your Color Video Camera

unless you provide the computer with a video capture

board and/or software. Consult your computer dealer or

manufacturer for details.

Polarity of the plug

• Do not make VISCA RS-232C and RS-422 connections at

the same time, as this may cause malfunctions.

• Use only the AC power adaptor (MPAAC1) supplied with

the unit. Do not use any other AC power adaptor.

Locations of Controls

Main Unit

Front

3 4

Rear

Bottom

5 6 7

qf qg

9 q; qa qs qd

1 Lens

is off (including standby mode). Then turn on the

power using DC power, VISCA command, or the

Remote Commander.

After the mode has been changed, the pre-set setting

saved by the Position Preset is returned to the initial

setting.

It takes about 7 seconds for the image to be displayed

after Pan/Tilt initialization motion has stopped.

Do not turn off DC power until the image has been

displayed.

When the power is on, you cannot flip the image using

this switch.

A wide conversion lens can be attached.

2 Sensor for the Remote Commander

3 POWER lamp

4 STANDBY lamp

5 Sensor for the Remote Commander

6 IMAGE FLIP switch

Flips the image upside down and executes Pan/Tilt

movement according to the camera installation.

Normally set this to OFF when you use the camera.

When the camera is attached to the ceiling, set this to

ON.

To change the mode, move the switch while the power

(Continued)

Locations of Controls

7 IR SELECT switch

Remote Commander

8 VISCA RS-422 connector

A VISCA RS-422 connector plug is attached to the

unit at the factory.

9 VIDEO (output) connector

0 S VIDEO (output) connector

qa VISCA RS-232C IN connector

qs VISCA RS-232C OUT connector

qd DC IN 12V connector

qf Tripod screw hole

qg BOTTOM switch

POWER

CAMERA SELECT

FOCUS

AUTO

MANUAL

FAR

NEAR

DATA SCREEN

BACK LIGHT

D30

MODE

OUT

422

38400

bps

STD

REV

PRESET

RESET

POSITION

9600

bps

232C

OFF

PAN-TILT

HOME

PAN-TILT

RESET

1 D30/D31 mode switch

SLOW

FAST

ZOOM

Set this switch to ON to operate the Color Video

Camera using the VISCA commands for the EVI-D30/

D31. (See page 52.)

L/R

DIRECTION SET

RM-EV100

2 IR SELECT switch

Set this switch to ON to allow the camera output

signals transmitted from the Remote Commander to

the Color Video Camera via VISCA OUT jack. (See

page 35.)

3 RS-232C/RS-422 SELECT

switch

Set this switch to RS422 to operate the Color Video

Camera using the VISCA commands via the RS-422

interface.

To switch modes, make sure that the power is turned

off (excluding standby mode), move the BOTTOM

switch, and then turn the DC power on.

The unit will not switch modes after the power is

turned on.

1 CAMERA SELECT buttons

2 FOCUS buttons

AUTO button

FAR button

NEAR button

MANUAL button

3 DATA SCREEN button

4 BAUD RATE SELECT switch

When the DATA SCREEN button is pushed, the

camera status is displayed when you are using the

Zoom or Manual Focus functions.

DATA SCREEN can be set to ON or OFF, and

memorized, only with POSITION 1.

When POSITION 1 is recalled, the memorized DATA

SCREEN status is used.

Set this switch to 38400 bps to operate the camera

with the baud rate of 38400 bps.

To switch modes, make sure that the power is turned

off (excluding standby mode), move the BOTTOM

switch, and then turn the DC power on.

The unit will not switch modes after the power is

turned on.

4 PAN-TILT button

qh Ceiling bracket mounting screw holes

Arrow buttons

HOME button

5 L/R DIRECTION SET button

6 POWER switch

7 BACK LIGHT button

8 POSITION buttons

Numeric buttons (Button 1 also works as the STD

button. Button 2 also works as the REV button.)

PRESET button

RESET button

9 PAN-TILT RESET button

0 ZOOM buttons

SLOW T button

SLOW W button

FAST T button

FAST W button

Basic Functions

Zoom

Focus

The camera employs an 18× optical zoom lens

combined with a digital zoom function allowing you to

zoom up to 216×.

Focus has the following modes, all of which can be set

using VISCA Commands.

• Auto Focus Mode

The minimum focus distance is 10 mm at the optical

wide end (extreme close-up settings with VISCA

control) and 800 mm at the optical tele end (distance

from the front end of the lens), and is independent of

the digital zoom.

The AutoFocus (AF) function automatically adjusts

the focus position to maximize the high frequency

content of the picture in a center measurement area,

taking into consideration the high luminance and

strong contrast components.

Lens specifications: Optical 18×, f = 4.1 to 73.8 mm

(F1.4 to F3.0)

The horizontal angle of view is approximately 48

degrees (wide end) to 2.7 degrees (tele end).

Digital Zoom enlarges the center of the subject by

expanding each image in both the vertical and

horizontal directions. When 12× digital zoom is used,

the number of effective picture elements in each

direction reduces to ¹/12 and the overall resolution

deteriorates.

- Normal AF Mode

This is the normal mode for AF operations.

You can activate the zoom in the following two ways:

- Interval AF Mode

The mode used for AF movements carried out at

defined intervals. The time intervals for AF

movements and for the timing of the stops can be

set in one-second increments using the Set Time

Command. The initial value for both is set to five

seconds.

• By pressing the TELE or WIDE buttons on the

Remote Commander.

• Using a VISCA Command

Using Standard Mode

Using Variable Mode

There are eight levels of zoom speed.

Direct Mode

Setting the zoom position enables quick

movement to the designated position.

Digital Zoom ON/OFF

- Zoom Trigger Mode

When the zoom is changed with the TELE or the

WIDE buttons, the pre-set value (initially set at 5

seconds) becomes that for AF Mode. Then, it

returns to Manual Focus mode.

AF sensitivity can be set to either NORMAL or

LOW.

In these standard and variable Speed Modes, it is necessary

to send a “Stop Command” to stop the zoom operation.

- NORMAL

Reaches the highest focus speed quickly. Use this

when shooting a subject that moves frequently.

Usually, this is the most appropriate mode.

- LOW

Improves the stability of the focus. When the

lighting level is low, the AF function does not take

effect, even though the brightness varies,

contributing to a stable image.

• The Zoom Mode supports a Combined Mode and a

Separate Mode.

Combined Mode

This is the previously existing zoom method.

After the optical zoom has reached its maximum

level, the camera switches to Digital Zoom Mode.

Separate Mode

In this mode, Optical Zoom and Digital Zoom can

be operated separately. You can use digital zoom

magnification at any time from within any level of

optical magnification.

Basic Functions

To avoid AF error from continuous 24 hour AF

mode usage, daily initialization of lens system

using the CAM_Initialize command is

recommended.

• One Push WB

The One Push White Balance mode is a fixed white

balance mode that may be automatically readjusted

only at the request of the user (One Push Trigger),

assuming that a white subject, in correct lighting

conditions and occupying more than ¹/2 of the image,

is submitted to the camera.

One Push White Balance data is lost when the power

is turned off. If the power is turned off, reset the One

Push White Balance.

The CAM_Initialize command takes less than 3

seconds to initialize the focus and zoom.

• Manual Focus Mode

MF (Manual Focus) has both a Standard Speed Mode

and a Variable Speed Mode. Standard Speed Mode

focuses at a fixed rate of speed. Variable Speed Mode

has eight speed levels that can be set using a VISCA

Command.

• Manual WB

Manual control of R and B gain, 256 steps each

Automatic Exposure Mode

The variety of AE functions, which allow video signal

to output the optimum image for subjects from low

light conditions to bright light conditions, are

available.

Will not stop by this command itself in Standard

Speed Mode and Variable Speed Mode. To stop, a

Stop command must be sent.

• One Push Trigger Mode

• Full Auto

When a Trigger Command is received, the lens

moves to adjust the focus for the subject. The focus

lens then holds the same position until the next

Trigger Command is input.

Auto Iris and Gain, Fixed Shutter Speed (NTSC: ¹/60

s, PAL: ¹/50 s)

• Shutter Priority¹⁾

Variable Shutter Speed, Auto Iris and Gain

(¹/1 to ¹/10,000 s, 22 steps, std. shutter: 16 steps, slow

shutter: 6 steps)

• Infinity Mode

The lens is forcibly moved to a position suitable for

an unlimited distance.

• Iris Priority

Variable Iris (F1.4 to Close, 18 steps), Auto Gain and

• Near Limit Mode

Can be set in a range from 1000 (∞) to C000 (10 mm).

The focus range is narrowed by excluding the

unnecessary range.

Shutter speed.

• Manual

Variable Shutter, Iris and Gain.

• Bright

White Balance

Variable Iris and Gain (Close to F1.6, 17 steps at

0 dB: F1.4, 15 steps from 0 to 28 dB)

White Balance has the following modes, all of which

can be set using VISCA Commands.

• Auto White Balance

This mode computes the white balance value output

using color information from the entire screen. It

outputs the proper value using the color temperature

radiating from a black subject based on a range of

values from 3000 to 7500K.

This mode is the default setting.

• ATW

Auto Tracing White balance (2000 to 10000 K)

• Indoor

3200 K Base Mode

• Outdoor

5800 K Base Mode

.................................................................................................................................................................................................................................

1) Flicker can be eliminated by setting shutter to:

t /120 s for PAL models used in countries with a 60 Hz power supply

t /100 s for NTSC models used in countries with a 50 Hz power supply

frequency.

Basic Functions

AE – Shutter Priority

AE – Manual

The shutter speed (22 steps), iris (18 steps) and gain

(16 steps) can be set freely by the user.

The shutter speed can be set freely by the user to a

total of 22 steps – 16 high speeds and 6 low speeds.

When the slow shutter is set, the speed can be ¹/30,

¹/15, ¹/8, or ¹/4 s. The picture output is read at a normal

rate from the memory. The memory is updated at a low

rate from the CCD. AF capability is low.

In high speed mode, the shutter speed can be set up to

¹/10,000 s. The iris and gain are set automatically,

according to the brightness of the subject.

AE – Bright

The bright control function adjusts both the gain and

iris using an internal algorithm according to a

brightness level freely set by the user. Exposure is

controlled by gain when dark and by iris when bright.

As both gain and iris are fixed, this mode is used when

exposing at a fixed camera sensitivity. When switching

from Full Auto or Shutter Priority Mode to Bright

Mode, the current status will be retained for a short

period of time.

Data

NTSC

10000

6000

4000

3000

2000

1500

1000

725

500

350

250

180

125

100

PAL

10000

6000

3500

2500

1750

1250

1000

600

425

300

215

150

120

100

Only when the AE mode is set to “Full Auto” or

“Shutter Priority,” the user can switch it to “Bright.”

Gain

IRIS AGC

OPEN MAX

IRIS curve

Gain curve

CLOSE MIN

Dark

Bright

Controlled

by gain

Controlled by IRIS

01 ^a)

00 ^a)

Bright limit which controllable

for this unit

a) For AE-Manual only.

Note

When the shutter speed 1/1 s or 1/2 s is used, Auto

Focus and White Balance may not function fully.

Data

Iris

F1.4

F1.6

Gain

28 dB

26 dB

24 dB

22 dB

20 dB

18 dB

16 dB

14 dB

12 dB

10 dB

8 dB

Data

Iris

F2.0

F2.4

F2.8

F3.4

F4.0

F4.8

F5.6

F6.8

F8.0

F9.6

F11

Gain

0 dB

AE – Iris Priority

The iris can be set freely by the user to 18 steps

between F1.4 and Close.

The gain and shutter speed are set automatically

according to the brightness of the subject.

Data

Setting value

F1.4

Data

Setting value

F6.8

F1.6

F8.0

F2.0

F9.6

F2.4

F11

F2.8

F14

6 dB

F14

F3.4

F16

4 dB

F16

F4.0

F19

2 dB

F19

F4.8

F22

0 dB

F22

F5.6

0 dB

Basic Functions

When switching from the Shutter Priority mode to the

Bright mode, the shutter speed set in the Shutter

Priority mode is maintained.

Exposure Compensation

Exposure compensation is a function which offsets the

internal reference brightness level used in the AE

mode by steps of 1.5 dB.

Spot Exposure Mode

In Full Auto AE, the level for the entire screen is

computed and the optimum Auto Iris and Gain levels

are determined. In Spot AE, a particular section of the

subject can be designated, and then that portion of the

image can be weighted and a value computed so that

Iris and Gain can be optimized to obtain an image.

For example, in an image with a lot of movement and

with varying levels of brightness, portions without

much change can be designated as such a “spot,” and

changes to the screen can be minimized in that area.

As shown in the diagram below, a range of 16 blocks

vertically and 16 blocks horizontally can be

designated.

In the case where the center is designated (shown in

black), the level is computed along with a weighted

value for the surrounding block (shaded), including the

specified portions; and then the Gain and Iris are set.

The value of the designated portions and the

surrounding areas should be calculated as 90% and the

rest should be set to 10%.

Data

Step

Setting value

10.5 dB

9 dB

7.5 dB

6 dB

4.5 dB

3 dB

1.5 dB

0 dB

–1

–2

–3

–4

–5

–6

–7

–1.5 dB

–3 dB

–4.5 dB

–6 dB

–7.5 dB

–9 dB

–10.5 dB

Aperture Control

Aperture control is a function which adjusts the

enhancement of the edges of objects in the picture.

There are 16 levels of adjustment, starting from “no

enhancement.” When shooting text, this control may

help by making the text sharper.

Horizontal 16

Vertical 16

Back Light Compensation

When the background of the subject is too bright, or

when the subject is too dark due to shooting in the AE

mode, back light compensation will make the subject

appear clearer.

Slow Shutter – Auto/Manual

When the Slow Shutter is set to “Auto,” this ensures

that the slow shutter is engaged automatically when the

brightness drops. This occurs only when the AE mode

is set to “Full Auto.”

“Slow Shutter Manual” is the factory setting.

ICR (IR Cut-Removable) Mode

An infrared (IR) Cut-Filter can be disengaged from the

image path for increased sensitivity in low light

environments. The ICR will automatically engage

depending on the ambient light, allowing the camera to

be effective in day/night environments.

If you normally set the IR Cut-Filter to OFF, the image

will be black and white (monochrome).

Basic Functions

Note

Auto ICR Mode

When in Auto_ICR_OFF state and WB data is added (default), a

malfunction may occur when the subjects largely consisting of blue

and green colors are taken. Auto ICR is available in AE-full-auto

state only.

Auto ICR Mode automatically switches the settings

needed for attaching or removing the IR Cut Filter.

With a set level of darkness, the IR Cut Filter is

automatically disabled (ICR ON), and the infrared

sensitivity is increased. With a set level of brightness,

the IR Cut Filter is automatically enabled (ICR OFF).

Also on systems equipped with an IR light, the internal

data of the camera is used to make the proper decisions

to avoid malfunctions.

Camera ID

The ID can be set up to 65,536 (0000 to FFFF). As this

will be memorized in the nonvolatile memory inside

the camera, data will be saved, regardless of the

“position preset.”

When Auto Slow Shutter is OFF (PRESLOW mode

ON (default) or OFF)

ICR

Effect

IRIS

OPEN

AGC

MAX

(Iris Open)

It consists of the following functions.

• Neg. Art: Negative/Positive Reversal

• Black White: Monochrome Image

(Gain Max)

ICR ON

IRIS

GAIN

(Iris Min)

(0dB)

(1/60 sec)

Others

Adjustable

SHUTTER

IMAGE FLIP

Dark

Bright

The image output by the camera is flipped upside

down, and the direction of Pan/Tilt movements are

reversed using the IMAGE FLIP switch on the back of

the unit.

ICR ON t OFF Adjustable

When Auto Slow Shutter is ON (PRESLOW mode

OFF)

Mirror Image

This function reverses the video output from the

camera horizontally.

IRIS

OPEN

ICR

AGC

MAX

(Iris Open)

(Gain Max)

Freeze

ICR ON

IRIS

This function captures an image in the field memory of

the camera so that this image can be output

continuously.

GAIN

(Slow Shutter Max)

(Iris Min)

(0dB)

Because communication inside the camera is based on V

cycle, the captured image is always the one 3V to 4Vs after

the sending of a Command. Thus, you can not specify a time

period after sending EVEN, ODD or a Command.

(1/60 sec)

Adjustable

SHUTTER

Dark

Bright

ICR ON t OFF Adjustable

Power On/Off

When Auto Slow Shutter is ON

(PRESLOW mode ON (default))

Powers the camera on and off. When the power is off,

the camera is able to accept only the lowest level of

VISCA Commands and POWER of the Remote

Commander; the display and other features are turned

off.

ICR

IRIS

OPEN

AGC

MAX

(Iris Open)

(Gain Max)

ICR ON

I/F clear

IRIS

GAIN

(Slow Shutter Max)

Clears the Command buffer of the camera. Clearing

the buffer can also be carried out from the control

application software when the power is on.

(Iris Min)

(0dB)

(1/60 sec)

Adjustable

SHUTTER

Address set

Dark

Bright

VISCA is a protocol, which normally can support a

daisy chain of up to seven attached devices.

Therefore, whenever a camera is connected for the first

time, be sure to use the address set to confirm the

address.

ICR ON t OFF Adjustable

Basic Functions

Mute

• Slow Shutter Auto/Manual

• White Balance Mode

• R/B Gain

Blanks the screen and sends out a synchronizing

signal.

• Aperture

• ICR Shoot On/Off

Lens Initialization

Initializes the zoom and focus of the lens. Even when

power is already on, it initializes the zoom and the

focus.

The settings are recalled when the power is turned on.

For setting items, see the “Initial Settings, Position Preset”

section on page 25.

AutoPowerOff

If an operation is not attempted via either a VISCA

command or the remote controller during a pre-set

time period (from 1 to 65,535 minutes), the power will

automatically turn off (Standby). To disable this

function, set the time period to 0 minutes.

Alarm

For details, see page 13.

NightPowerOff

When the Alarm function operates in DayNight mode,

and the unit judges that it is night, if an operation is not

attempted via either a VISCA command or the remote

controller during a pre-set time period (from 1 to

65,535 minutes), the power will automatically turn off

(Standby). To disable this function, set the time period

to 0 minutes.

When the DayNight level is set correctly (the Day

level > the Night level), the Alarm function can only

be set when the unit is operated in DayNight mode.

For information on DayNight mode settings, see pages 13,

14, and 24.

AutoPowerOff and NightPowerOff can be used at the

same time.

However, if the criteria for both are fulfilled at the

same time, the shorter of the two time periods until

shut down will be used to turn the power off

(Standby).

Memory (Position Preset)

Using the position preset function, 6 sets of camera

shooting conditions can be stored and recalled.

This function allows you to achieve the desired status

instantly even without adjusting the following items

each time:

• Pan-Tilt position

• Zoom Position

• Digital Zoom On/Off

• Focus Auto/Manual

• Focus Position

• AE Mode

• Shutter control parameters

• Bright Control

• Iris control parameters

• Gain control parameters

• Exposure Compensation On/Off

• Exposure Level

• Backlight Compensation On/Off

Basic Functions

Alarm Function

Title Display

The camera can be given a title containing up to 20

characters such as “ENTRANCE” or “LOBBY”. The

position of the first character (horizontal, vertical) of

the title, blinking state, and color can also be changed.

This function instructs the camera to detect movement

within the monitoring area and then send an alarm

signal automatically.

A High level signal is output when camera detects

movement inside the monitoring area. A Low level

signal is output when object stops moving.

However, when the mode is set to “DAY/NIGHT”, the

High level signal is output for dark and the Low level

signal is output for bright.

Vposition

Hposition

00 to 0A

00 to 17

00: Does not blink

01: Blinks

Blink

Color

White

Yellow

Violet

Red

The Detect signal goes out through the serial command

(VISCA) communication line.

Example

Cyan

Green

Blue

1. A door is motionless, so the Detect Level is Low.

2. At the moment when the door is opened by

someone, the Detect Level goes to High.

3. The Detect Level is High while the shooting object

is moving.

4. When the door is closed, Detect Level goes to Low

again, or signals are output only once at the time of

switching between High Level and Low Level.

“

‘

Basic Functions

ALARM Setting Command List

Command Set

Command

Command Packet

8x 01 04 6B 02 FF

8x 01 04 6B 03 FF

8x 01 04 6C pp FF

Comments

MD start

CAM_Alarm

Off

MD stop

Set Mode

Mode Setting

*Select one from 13 modes

Set Day Night Level

8x 01 04 6D 0p 0p 0p

0q 0q 0q FF

ppp: Day distinction AE level

qqq: Night distinction AE level.

90 07 04 6B 01 FF

90 07 04 6B 00 FF

High signal output

(Low t High edge)

Low signal output

(High t Low edge)

VISCA Mode Code (pp) Details of Mode

Set the internal focus position. When focus movement is detected, the detect signal is High. When focus goes

back to the previous position, the detect signal is Low.

Set a fixed period of time. When focus does not move during the time, the focus position is memorized as a

rest position and the detect signal is Low.

When focus moves, the detect signal is High. Afterwards when focus does not move for the fixed period of

time, the focus position is memorized and the detect signal becomes Low.

Set the internal AE Level. When AE movement is detected, the detect signal is High. When AE Level goes

back to the previous level, the detect signal is Low.

Set a fixed period of time. When AE Level does not change during this time, the AE value is memorized as a

rest value and the detect signal is Low.

When AE value changes, the detect signal is High.

Afterwards when AE value does not change for the fixed period of time, the AE value is memorized and the

detect signal becomes Low.

mode “00” and mode “02”

mode “00” and mode “03”

mode “01” and mode “02”

mode “01” and mode “03”

mode “00” or mode “02”

mode “00” or mode “03”

mode “01” or mode “02”

mode “01” or mode “03”

Day-Night Mode

ALARM Inquiry Command List

Inquiry Command

Command Packet Inquiry Packet

Comments

CAM_Alarm Inq

8x 09 04 6B FF

y0 50 02 FF

y0 50 03 FF

y0 50 pp FF

Off

CAM_Alarm Mode Inq

8x 09 04 6C FF

8x 09 04 6D FF

pp: Alarm Mode

CAM_AlarmDayNightLevel Inq

y0 50 0p 0p 0p

0q 0q 0q 0r 0r 0r FF

ppp: Day setting AE Level

qqq: Night setting AE Level

rrr: Now AE Level

CAM_AlarmDetLevelInq

8x 09 04 6E FF

y0 50 01 FF

y0 50 00 FF

Detect Level is High.

Detect Level is Low.

Basic Functions

Flowchart of 12 Modes Function

Mode “00”

Set the Focus Position

Hysteresis.

Set to the factory preset

Alarm On

Focus Position into memory

AE moves

Focus moves outside of

the hysteresis.

High level signal output

* Repeat this loop until Alarm off.

Focus goes back to the

previous position.

Low level signal output

Far

Hysteresis

Focus

Position

High

Near

Low

Basic Functions

Mode “01”

Focus Position into memory

Alarm On

Hysteresis is set to the factory

preset.

AE moves.

Focus moves outside of the

hysteresis.

High level signal output

* Repeat this loop until Alarm off.

AE does not move for

a period of time.

AE does not move for

a period of time.

Low level signal output

Update the Focus position data.

Basic Functions

Mode “02”

Set to the factory preset

AE Level into memory

Set the AE level Hysteresis.

Alarm On

AE moves.

AE moves outside of

the hysteresis.

High level signal output

* Repeat this loop until Alarm off.

AE goes back to the

previous level.

Low level signal output

Bright

Hysteresis

AE Level

High

Dark

Low

Basic Functions

Mode “03”

AE level into memory

Alarm On

Hysteresis is set to the factory

preset.

AE moves.

AE moves outside of

the hysteresis.

High level signal output

* Repeat this loop until Alarm off.

AE does not move for

a period of time.

AE does not move for

a period of time.

Low level signal output

Update the AE level data

Basic Functions

Details of Mode “01” to “03”

T1: Reset interval timer (5sec)

T2: Detect timer (2sec)

T3: High level signal count timer (2sec)

Alarm ON

Hysteresis

Reset

Focus Pos/

AE Level

Reset

High

Low

Signal level

T1:

T2:

T3:

Basic Functions

Mode “04”

The same flow for the low level signal