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Bower SFD 728 User Manual

Auto focus ttl digital dedicated flash

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NOMENCLATURE

FLASH FEATURES

Guide No: 28m/92ft (ISO100@50mm)

Flash ready indicator in viewfinder

Full Digital TTL dedication

Autofocus Infra-Red Assistance beam

Zoom, bounce and swivel construction

Automatic shutter speed setting

Auto check (OK) indicator

Red eye reduction*

Second/Rear curtain synchronization*

Slow synchronization (For Nikon only)

Dedication: ETTL I / II (Canon), iTTL (Nikon)

* Camera dependent features. Please check your camera operating

instruction manual

PLEASE READ BEFORE YOU USE THE FLASH

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.

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.

3. For precise flash output, it is best to wait till an

intermittent humming sound is heard before

depressing the shutter.

4. Maintain at least 2m away from your subject.
5. Always set the flash zoom head position according to

the zoom position of your camera lens.

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.

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.

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.

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.

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.

BATTERIES INSTALLATION

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.

MOUNTING THE FLASH ON THE CAMERA

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.

AUTO CHECK LIGHT

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

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.

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.

SECOND/REAR CURTAIN SYNCHRONIZATION

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.

*For rear curtain synchronization setting, refer to your camera instruction manual.

RED EYE REDUCTION

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.

USING ZOOM HEAD

For proper angle coverage, set the flash zoom head

position according to the zoom position of the camera

lens.

USING BOUNCE AND SWIVEL HEAD

Various combination of bounce and swivel angle can be

used to cut off unwanted shadow or for special soft effect

purposes.

CAMERA COMPATIBILITY CHART:

Type

Model

Canon

(AFC)

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

Nikon

(AFN)

Coolpix 8400, 8800

D40, D40x, D50, D70, D70s, D80, D200, D2xs

D2Hs, D2x, D2H

READY LIGHT

SWIVEL PIVOT

ON/OFF SWITCH

AUTO FOCUS TTL

DIGITAL DEDICATED FLASH

4 POSITION
ZOOM SHROUD

BATTERY

COMPARTMENT

BOUNCE ANGLE

SCALE

AUTO CHECK
LIGHT

TEST BUTTON

FLASH HEAD

BOUNCE HEAD

BASE

AF ILLUMINATOR

SPECIFICATIONS:

Guide Number:

28m / 92ft (ISO 100@50mm)

Circuitry:

IGBT and series circuitry

HOTSHOE BASE

LOCK RING

Automatic TTL Range: 14m / 46ft (F2.0)
AF Illumination:

8m / 26ft

Dedication:
- For Canon

E-TTL/E-TTL II

- For Nikon

iTTL

Exposure check:

Green Auto Check Light

Color Temperature: Daylight 5600K
Zoom Head Position: 28mm to 85mm (35mm equiv)
Bounce Adjustment: 0 ~ 90°
Horizontal Swivel:

0 ~ 330°

Flash Duration:

1/700 sec. (Full power)

Recycling Time:

0.5 ~7 sec.

Number of flashes:

100 – 300 per set of new batteries

Power Source:

4 AA Batteries

(Alkaline, NiCd or NiMH)

Dimension (mm):

168 Ч 48 Ч 76

Weight:

221 grams (w/o batteries)

Printed in Singapore (PK6528-12 REV02 11/05/07)

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.

DIRECT FLASH

INDIRECT FLASH

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