Bower Camera Flash SFD728 User Manual

NOMENCLATURE  
PLEASE READ BEFORE YOU USE THE FLASH  
PROGRAM TTL (P) / AUTO MODE  
This flash unit provides automatic Through-The-Lens  
(TTL) control of the flash exposure when used with  
dedicated digital cameras. When using this mode, the  
flash unit will automatically emit the flash output for a  
balance illumination of the subject and background. The  
inbuilt AF infra-red assistance beam will turn on  
automatically to assist the camera to focus in low lighting  
conditions.  
IMPORTANT NOTES FOR FLASH PHOTOGRAPHY  
AND MAINTAINANCE  
1. For best flash photography results, set your ISO to  
200 and above in both indoor and outdoor.  
4 POSITION  
ZOOM SHROUD  
2. After each picture, wait for at least 4-5 seconds for the  
flash to be fully charged before taking the next shot  
even though the ready light is on. This will help to  
prolong the lifespan of the flash tube as well as to  
attain the full charging capacity of the flash capacitor  
for precise flash photography.  
SWIVEL PIVOT  
AUTO FOCUS TTL  
DIGITAL DEDICATED FLASH  
BOUNCE ANGLE  
SCALE  
TTL AV, TV AND M MODE  
When this flash unit is used in AV, TV or M mode, the  
flash exposure will be automatically controlled by the  
camera based on the combination of shutter speed and  
aperture value.  
*For TV mode, do not exceed the maximum camera’s flash synchronization  
speed. In AV mode, setting at a slow speed will usually result in blur pictures  
caused by handshake. In such situation, the use of tripod is recommended.  
BATTERY  
COMPARTMENT  
3. For precise flash output, it is best to wait till an  
intermittent humming sound is heard before  
depressing the shutter.  
ON/OFF SWITCH  
READY LIGHT  
4. Maintain at least 2m away from your subject.  
AUTO CHECK  
LIGHT  
5. Always set the flash zoom head position according to  
the zoom position of your camera lens.  
SECOND/REAR CURTAIN SYNCHRONIZATION  
TEST BUTTON  
FLASH HEAD  
This mode permits you to release the flash just before the  
shutter closes during slow shutter speed shooting. In this  
way, a trail of lighting can be taken behind the main  
subject when slow shutter speed is being used.  
6. In the event that the flash exposure is incorrect (over  
or under exposed or green auto check light does not lit  
up), you may take either one or more of the corrective  
action: (1) move closer to the subject (2) Re-adjust  
your bounce/swivel angle (3) Adjust flash zoom head  
(4) Increase ISO setting.  
*For rear curtain synchronization setting, refer to your camera instruction manual.  
RED EYE REDUCTION  
7. Bounce or swivel should only be used on lighter colour  
ceiling or white walls with zoom head set at the 50mm  
position. Note that when using this feature, 2-3 f/stop  
of light will be lost due to reflection.  
When red eye reduction is activated on the DSLR body,  
the flash unit will activate a series of preflash before the  
main flash to reduce the possibility of red-eye occurrence  
during digital photography.  
8. Always use a fresh set of 4 batteries of the same  
brand and type when old batteries are depleted. Mix  
and match batteries of different types/brands will  
greatly deteriorate flash performance.  
BOUNCE HEAD  
BASE  
USING ZOOM HEAD  
For proper angle coverage, set the flash zoom head  
position according to the zoom position of the camera  
lens.  
AF ILLUMINATOR  
HOTSHOE BASE  
9. When flash is not being used for extended period of  
time (>2 weeks), remove all batteries to prevent  
battery leakage. After batteries removal, do not  
expose the flash unit and batteries to excessive heat  
such as fire or sun.  
SPECIFICATIONS:  
USING BOUNCE AND SWIVEL HEAD  
Guide Number:  
Circuitry:  
28m / 92ft (ISO 100@50mm)  
IGBT and series circuitry  
Various combination of bounce and swivel angle can be  
used to cut off unwanted shadow or for special soft effect  
purposes.  
10. Charge up and test fire the flash unit at least once per  
month to maintain the optimal performance of the  
flash tube and charging capacitor.  
Automatic TTL Range: 14m / 46ft (F2.0)  
LOCK RING  
AF Illumination:  
Dedication:  
8m / 26ft  
BATTERIES INSTALLATION  
- For Canon  
- For Nikon  
E-TTL/E-TTL II  
iTTL  
Ensure that the ON/OFF is in the OFF position. Insert 4  
new AA size batteries according to the battery polarity  
indicated inside the battery chamber.  
FLASH FEATURES  
Exposure check:  
Green Auto Check Light  
Daylight 5600K  
Color Temperature:  
Guide No: 28m/92ft (ISO100@50mm)  
Flash ready indicator in viewfinder  
Zoom Head Position: 28mm to 85mm (35mm equiv)  
MOUNTING THE FLASH ON THE CAMERA  
DIRECT FLASH  
INDIRECT FLASH  
Bounce Adjustment: 0 ~ 90°  
Full Digital TTL dedication  
Ensure that the On/OFF switch is at the OFF position.  
Slide the flash hotshoe base onto the camera’s hot shoe  
contact and fasten the lock ring in an anti-clockwise  
motion. Slide the ON/OFF Switch to the ON position.  
When the Ready Light lights up, the flash is ready to fire.  
Pressing the Test Button will test fire the unit.  
Horizontal Swivel:  
Flash Duration:  
Recycling Time:  
Number of flashes:  
Power Source:  
0 ~ 330°  
1/700 sec. (Full power)  
0.5 ~7 sec.  
Autofocus Infra-Red Assistance beam  
Zoom, bounce and swivel construction  
Automatic shutter speed setting  
Auto check (OK) indicator  
CAMERA COMPATIBILITY CHART:  
Type  
Model  
Powershot Models:  
G1, G2, G3, G5, G6, G7, G9,G10, S5 IS, Pro 1  
EOS Models:  
5D, 5D MKII, 20D, 30D, 40D, 50D, 300D, 350D  
400D, 450D, 1000D  
100 – 300 per set of new batteries  
Canon  
(AFC)  
4 AA Batteries  
Red eye reduction*  
AUTO CHECK LIGHT  
(Alkaline, NiCd or NiMH)  
Second/Rear curtain synchronization*  
Slow synchronization (For Nikon only)  
Dedication: ETTL I / II (Canon), iTTL (Nikon)  
The Green Auto Check Light located on the back of the  
flash is used to confirm that your subject is within the  
effective TTL range of the flash unit. If your subject is  
within the effective TTL flash range after shooting, the  
green Auto Check Light will illuminate for approximate 2  
seconds  
Dimension (mm):  
Weight:  
168 × 48 × 76  
221 grams (w/o batteries)  
Coolpix 8400, 8800  
D40, D40x, D50, D70, D70s, D80, D200, D2xs  
D2Hs, D2x, D2H  
Nikon  
(AFN)  
* Camera dependent features. Please check your camera operating  
instruction manual  
Due to the rapid introduction of new digital cameras, the above  
compatibility list may not be updated to indicate the respective new  
models at the time of printing. Nevertheless, the flash unit is still  
compatible with new camera models that utilize the latest digital  
dedication system.  
Printed in Singapore  
(PK6528-12 REV02 11/05/07)  
 

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