Pentax 300X User Manual

FUJICA  
AUTO STROBO  
300X  
OWNER'S MANUAL  
This manual will show you how to use your  
FUJICA AUTO STROBO 300X correctly.  
Please read it through carefully.  
SPECIAL FEATURES  
1. Your Fujica Auto Strobo 300X is a high-power  
series-circuitry computer flash (guide number  
30). It provides an option of three apertures to  
let you freely take automatic flash pictures. For  
example, if you want to take long-range flash  
shots, you can use a large aperture and shoot at  
up to 11 meters. If you want everything in your  
picture sharply focused, the aperture can be  
stopped down as far as f/11 (with ISO/ASA 100  
film).  
3. Used on the Fujica AX-5, AX-3, AX-1, or AZ-1,  
it will automatically switch the camera's shutter  
speed to 1/60-sec. as soon as it is fully charged.  
Since you can check the flash charge-up while  
looking through the viewfinder, you will not lose  
any shooting opportunities.  
2. It is provided for twin-light bounce flash. If the  
flash head is tilted for bounced lighting, it auto-  
matically converts into a twin flash unit having  
a main light and a sublight. With this flash, you  
can take perfect bounce-light pictures everytime,  
although this type of pictures are generally con-  
sidered difficult to take with flash.  
2
SPECIFICATION  
Type  
Connection  
Guide Number  
Series-circuitry computer flash.  
Hotshoe and clip-on type with safety lock.  
30 (ISO/ASA 100 m) with new batteries, 30 seconds after the neon lamp turns on.  
Guide number for bounce flash: 25 for main light, 6 for sublight.  
1/1,000 ~ 1/30,000 sec.  
Covers the view angle of a 35 mm lens (35 mm format); with wideangle adapter  
attached, covers the view angle of a 28 mm lens (35 mm format).  
9 sec. after lighting of the neon lamp with new alkaline-manganese batteries.  
Daylight type.  
150 with fresh alkaline-manganese batteries.  
Silicon photocells and thyristor circuit.  
Manual and three-step automatic apertures (yellow, red, green).  
Aperture setting for ISO/ASA 100: Red f/2.8.  
Flash Duration  
Angle of Coverage  
Recycle Time  
Light Quality  
Number of Flashes  
Light Control  
Selection of Apertures  
Green f/5.6.  
Yellow f/11  
Automatic Flash Range  
Bounce Flash  
Red  
Green  
Yellow  
:
:
:
1.5 ~ 10.7 m (5 ~ 35 ft)  
5.3 m (3.3~18 ft)  
0.8 ~ 2.7 m (2. 6- 9 ft)  
1
~
Flash head tiltable 0 ~90°; when tilted, a sublight switches on and the flash is  
set up for twin-light bounce flashing.  
Four penlight batteries (AA size)  
ISO/ASA 25 400  
f/1.4 ~ f/32  
Power Source  
Film Speed  
Aperture Scale  
Notice: Specifications are subject to change without notice.  
3
NAMES OF PARTS  
Tilting Angle Scale  
Auto Check Lamp  
Main Lamp Face  
Flash Guide Disk  
Flash Ready Lamp  
Main Switch  
Battery Compartment  
Cover  
Sub Lamp-Face  
Test Button  
Sensor  
Auto/Manual Switch  
(Distance Selector)  
Wheel Lock  
4
LOADING THE BATTERIES  
How to load the batteries  
Battery type  
Use four penlight batteries (AA  
size). Alkaline-manganese batteries  
are recommended because of their  
long service life.  
• Recycle time will be longer in  
cold weather because low  
temperatures will reduce bat-  
tery efficiency. Try to keep  
the batteries warm in cold  
weather by carrying them in  
your coat pocket until they  
are needed.  
• If the flash is not being used  
for a long interval, remove the  
batteries before putting it  
away because old batteries can  
develop leaks and damage it.  
1. Remove the Battery Compart-  
ment Cover by pulling it out in  
the direction of the arrow.  
2. Insert four batteries, plus (+)  
and minus (-) ends correctly  
as illustrated in the Battery  
Compartment, then replace  
the cover by sliding it in until  
it locks.  
5
Battery life  
• On manual flash, a new set of  
alkaline-manganese batteries  
will provide about 150 flashes  
but it is always best to change  
them as soon as they start to  
show wear. If the recycle time  
lags to 30-second or more, the  
batteries should be considered  
exhausted.  
• Be sure to change the four bat-  
teries all at once and make  
sure all four are of the same  
brand and are new.  
• After you are through taking  
pictures, always turn the Main  
Switch off to save battery.  
4. After checking the batteries,  
be sure to turn off the Main  
Switch.  
Note: If the Main Switch is left  
on, the batteries will be exhausted  
in a short time even if the flash is  
not discharged.  
3. Turn on the Main Switch. If  
the red Flash Ready Lamp  
(located in the center of the  
Flash Guide Disk) turns on in  
a few seconds, the batteries are  
properly loaded.  
6
MOUNTING THE FLASH ON THE CAMERA  
TAKING FLASH  
PICTURES (I)  
• Setting the camera's  
shutter speed  
1. If you are using the flash with  
a Fujica AX-series camera, the  
camera's shutter speed will  
automatically switch to 1/60  
sec. (X-sync) as soon as it is  
fully charged, regardless of  
where the shutter speed dial  
has been set (except "B").  
2. If you are using it with the  
Fujica AZ-1, the camera's  
shutter speed will automatical-  
ly switch to 1/60 sec. (X-sync)  
with the shutter speed dial set  
to AE as soon as it is fully  
charged.  
3. If you are using it with other  
cameras, set the camera's shut-  
ter speed to (1/60 or 1/125  
sec.) (X-sync.).  
1. Turn off the Main Switch.  
2. Loosen the Wheel Lock by  
turning it counterclockwise,  
grip the bottom part of the  
flash and clip the Strobo Foot  
into the camera's accessory  
shoe. Make sure the foot goes  
all the way in because the flash  
might not function properly if  
it is only part of the way in.  
then turn the Wheel Lock  
clockwise to lock the flash  
securely in place.  
3. To dismount the flash, loosen  
the Wheel Lock by turning it  
counterclockwise then grip the  
bottom part of the flash and  
slide the Strobo Foot out.  
7
Setting the Strobo's  
Distance Selector  
Setting the film speed  
• Setting the aperture  
Read off trie aperture indicated  
on the Flash Guide Disk for the  
color of the mark you selected  
and set the lens' aperture ring  
accordingly.  
Example: With ISO/ASA 100 film,  
the apertures to be set for the  
different colors are as follows:  
Red  
Green  
Yellow  
f/2.8  
f/5.6  
f/11  
Turn the Flash Guide Disk on the  
Strobo back and set the speed  
of the film you are using opposite  
the index mark.  
Example: If you are using Fuji-  
color HR100, set "100" on the  
ISO/ASA scale opposite the index  
mark.  
Set the Distance Selector on the  
Strobo front to either the red,  
green,or yellow mark. These marks  
represent the following shooting  
distances:  
Red  
1.5- 10.7m  
( 5 ~ 3 5 f t . )  
1 — 5.3m  
(3.3~ 18 ft.)  
0.8 - 2.7m  
(2.6 ~ 9 ft.)  
Green  
Yellow  
8
TAKING FLASH  
PICTURES(II)  
(Bounce-light pictures)  
• If the Auto/Manual Switch is  
set to M, your Auto Strobo  
300X will work as a manual-  
operation flash having a guide  
number of 30 (ISO/ASA100 m).  
To find the correct aperture,  
divide the guide number by  
the flash-subject distance, and  
set the aperture ring accord-  
ingly. The guide numbers rela-  
tive to the film ISO/ASA speeds  
are shown in the followng  
table.  
If your subject is standing near a  
wall, you will get distracting  
shadows in your picture if you  
flash it from the front. In this  
case, rotate the flash head upward  
so that it is indirectly illuminated  
by the light reflected from the  
ceiling. The lighting will thus be  
soft and shadows can be practical-  
ly controlled. This is called  
"bounce flash."  
• Switch on the Main Switch.  
As soon as the Flash Ready  
Lamp turns on, press in the  
Test Button to make sure the  
Auto Check Lamp turns on. If  
it turns on, you are ready to  
take automatic flash pictures.  
The flash will automatically  
provide the right amount of  
light for correct exposure.  
ISO/  
ISO/  
ASA50  
ISO/  
ISO/  
ISO/  
ASA25  
ASA100 ASA200 ASA400  
15DIN 18DIN 21DIN  
27 DIN  
60  
24DIN  
42  
m
ft  
15  
21  
71  
30  
50  
100  
200  
140  
Note: If you are using bounced  
lighting on the manual mode, care  
must be taken because the guide  
number will become smaller.  
9
angle of the flash head. A prac-  
tical way of bounced lighting  
is to tilt the flash head 60° ~  
90° so that the light reaches  
the subject from the ceiling.  
The tilting angles of the flash  
head depending on the shoot-  
ing distance are shown below.  
Use this table only as a guide.  
bounced lighting are approxi-  
mately as follows:  
Red mark  
1 - 4m  
(3 ~ 12 ft.)  
1 - 2m  
Green mark  
(3 ~ 6 ft.)  
Do not use the yellow mark.  
4. The automatic flash range will  
differ depending on the reflect-  
ing surface. Before shooting,  
always press in the Test But-  
ton to make sure the Auto  
Check Lamp turns on.  
m
ft  
1
1.5  
5
2
3
4
3.3  
6.6 10 13  
60'  
75°  
90"  
Tilting  
Angle  
5. When the flash head is tilted,  
the Auto Strobo 300X will  
automatically convert into a  
twin flash. For bounce flash,  
a sublight located below the  
main light will fire at the same  
time to insure that the main  
subject is correctly exposed.  
90°  
75°  
60"  
75°  
2. The procedure for picture-tak-  
ing is the same as that for tak-  
ing non-bounce-light pictures.  
3. The automatic flash ranges for  
1. Taking into account the height  
of the reflecting surface (ceil-  
ing, wall, etc.) and the shoot-  
ing distance, choose the tilting  
10  
OFF-CAMERA  
FLASH OPERATION  
USING THE WIDEANGLE ADAPTER  
• Automatic flash range  
If the Wideangle Adapter is used,  
the automatic flash range changes  
as follows:  
It is possible to use Auto Strobo  
300X away from the camera by  
means of the PC synchro cord  
supplied. When employed in this  
way, always ensure that the total  
flash-to-subject distance is taken  
into account, or under-exposure  
will result.  
Also ensure that the flash unit is  
held "square" to the camera, i.e.  
do not allow the flash to face  
away from a reflecting surface.  
If you are taking flash pictures  
with a 28mm lens, attach the  
Wideangle Adapter (included) to  
the front of the flash lamp-face.  
The illumination angle will thus  
cover the view angle of a 28 mm  
lens (53° vertical, 70° horizontal).  
Since the use of the wideangle  
adapter results in a loss of light,  
refer to the following instructions  
to set the exposure.  
Red mark . . . . 1.5  
( 5 ~ 2 5 f t . )  
Green mark . . . 3.8m  
(3.3 ~ 12.5 ft.)  
0.7 - 2  
(2.3 ~ 6.6 ft.)  
-
7.6m  
1
-
Yellow mark  
.
.
m
• Manual flash exposure  
In this case, the aperture should  
be opend by one step from that  
obtained by dividing the guide  
number by the flash-subject  
distance.  
Example: If the shooting dis-  
tance is 5 m, the aperture to use is  
f/5.6 without wideangle adapter  
because 30 5 = 6. With it at-  
tached, however, open the aper-  
ture by one step and use f/4.  
11  
FUJI PHOTO FILM CO., LTD.  
26-30, Nishiazabu 2-chome, Minato-ku, Tokyo 106, Japan.  
<Fuji Film Abroad>  
In North America  
FUJI PHOTO FILM U.S.A., INC.  
350 Fifth Ave., New York, N.Y. 10118, U.S.A.  
FUJI PHOTO FILM CANADA INC.  
743 Renaud Ave., Dorval, P.Q- Canada H9P 2N1  
FUJI PHOTO FILM HAWAII, INC.  
Pacific International Bldg., Suite 304,  
677 Ala Moana Blud., Honolulu. Hawaii 96813, U.S.A.  
In Europe  
FUJI PHOTO FILM (EUROPE) G.m.b.H.  
4 Dijsseldorf 1, Postfach 3204, Berliner Allee 8, West Germany  
FUJI PHOTO FILM (U.K.) LTD.  
99 Baker Street, London, W1M 1FB, England  
In South America  
In Asia  
FUJI PHOTO FILM DO BRASIL LTDA.  
Caixa Postal 9959, Rua Major diogo, 128, CEP 01, 324, Sao Paulo. Brasil  
FUJI PHOTO FILM CO., LTD., HONG KONG OFFICE  
15th Floor, Melbourne Plaza, No. 33. Queens Road, Central, Hong Kong  
FUJI PHOTO FILM CO., LTD., SINGAPORE OFFICE  
Unit 537, 5th Floor, Plaza Singapura, 68, Orchard Road, Singapore, 9  
FUJI PHOTO FILM CO., LTD., BANGKOK OFFICE  
K 8 Y Bldg., 5th Floor. 16 Surasak Road, Bangkok, Thailand  
FUJI PHOTO FILW CO., LTD., TAIPEI OFFICE  
Rm. 501 Hung Chong Bldg., No. 20, Chiling Road, Taipei. Taiwan  
FUJI PHOTO FILM CO., LTD., SEOUL OFFICE  
Mee Wha Building, 30-1, Mukjong-dong, Chung-ku, Seoul, korea  
FUJI PHOTO FILM CO., LTD., MANILA OFFICE  
In Oceania  
16th Floor, Citibank Center Bldg., Paseo de Roxas, Makati, Metro Manila, Philippines  
Printed in Japan  
FUJI PHOTO FILM CO., LTD., SYDNEY OFFICE  
Hanimex Bldg.. Old Pittwater Road, Brookvale, N.S.W. 2100, Australia  

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