Promaster SF108M Instruction Manual

Instruction Manual

PARTS IDENTIFICATION

① Built-in bounce card

Creates a highlight in the subject’s eyes in bounce flash photography.

② Built-in wide-flash adapter

Increases the angle of coverage to match a 14mm or 17mm lens.

③ Optical control sensor

For the flash using as a slave flash.

④ Flash head

Can be tilted up to 90° and rotated horizontally 180° to the left or 90° to the right.

⑤ Battery chamber
⑥ Hot Shoe locking ring

⑦ Flash bounce angle scale
⑧ Display panel
⑨ Control buttons
⑩ Sync terminal

⑪

Mode indicator

MANUAL, SLAVE A, SLAVE B

⑫

Flash output indicator

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

⑬

Charging indicator

If the charging indicator is green the flash is charged and ready to fire. If the
indicator remains red for more than 1 minute, please replace the batteries.

⑭

+/- buttons

Press to increase or decrease the flash output.

⑮

Test button

Press to test fire the flash.

⑯

Mode button

Press to select MANUAL, SLAVE A or SLAVE B.

⑰

Power button

Press for approx. 2 sec. to turn the power on and off.

INSTALLING THE BATTERIES

ATTACHING THE FLASH TO THE CAMERA

OPERATION

Testing the flash

1. Press the POWER button for
approx. 2 sec. to turn the power on.

2. Press the MODE button to select the
desired mode.

3. Press the +/- button to increase or
decrease the power output.

4. When the charge indicator is green,
press the TEST button to fire the
flash.

5. Mount the flash on the camera hot
shoe. The flash is ready for use.

6. When not in use, press the POWER
button for approx. 2 sec. to turn the
power off.

Note: In the manual mode, the flash
will automatically power off after 60
minutes of inactivity.

Using the built-in bounce card

In bounce flash photography, use the
built-in bounce card to create a highlight
in the subject's eyes, making the eyes
look more vibrant.

As shown in the illustrations, pull out the
wide-flash adapter and while holding the
bounce card, slide the wide-flash
adapter back into place inside the flash
head.

Tilt the flash head up 90° to use this
feature most effectively.

Using the built-in wide-flash adapter

Slowly pull out the wide-flash adapter all
the way, and position it over the flash
head. Then slide the bounce card back
into place inside the flash head.

Increases the angle of coverage to
match a 14mm or 17mm lens.

Using the optical slave control

The SF108M features an optical slave control function. There are two different
slave modes.

SLAVE A: In this mode, the SF108M will fire with the first flash. If you are using
this mode, be sure to turn off any pre-flash/red eye reduction mode on the
main flash.

SLAVE B: In this mode the, the SF108M will ignore the pre-flash used by
many cameras to reduce red eye. Note: Different cameras and flashes use
different pre-flash parameters. If you do not get correct exposure in this mode,
the pre-flash parameters of the master flash may not sync properly and you
should use the SLAVE A mode.

1. Use the built-in flash on your camera or an external flash as a master
flash.

2. Set one or more SF108M flashes in your desired position.

3. Press the test button on your master flash or make a test exposure to
ensure the slaves are seeing the master flash and fire accordingly.

NOTE: Do not put any barrier between the master and slave flash. The
barrier will block the optical signal. In the slave mode the SF108M will go
into the power save mode after 30 minutes of inactivity.

FOR YOUR SAFETY

Before using your product, please read the following safety precautions:

1. Never attempt to disassemble or repair the flash unit by yourself.

2. If the flash unit is dropped and damaged, do not touch any exposed interior
metal parts.

3. If you detect heat, smoke or notice a burning smell, immediately stop
operation and remove the batteries to prevent the unit from catching on fire
or melting.

4. The flash unit should never be submerged in liquid or exposed to rain,
saltwater or moisture unless it is properly protected from the liquids and
moisture. Underwater use requires a certified underwater housing.

5. Do not use the unit in the presence of flammable or explosive gas.

6. Do not fire the flash unit directly at the driver of a moving car, as this could
temporarily impair the driver’s vision and cause an accident.

7. Do not fire the flash unit directly into the eyes of someone that is at close
range, as it could damage their eyes’ retinas. Never fire the flash unit
closer than 1 meter from infants.

8. Do not fire the unit while the flash head is touching a person or object.

9. Keep small accessories out of the reach of children to avoid the possibility
of the accessory being swallowed. If an accessory is accidentally
swallowed, immediately consult with a doctor.

10. Do not mix battery types, brands or old and new batteries, as the batteries
could leak, explode or catch on fire. When using more than one battery in
a product, always use identical batteries that were purchased at the same
time.

11. Do not install batteries in the reverse direction as this could cause the
batteries to leak corrosive liquids, generate heat or explode. Even if only
one battery is installed in reverse it will cause the flash to malfunction.

SPECIFICATIONS

Guide Number: 108'/33m
Circuit Design: IGBT
Power Source: 4 - AA alkaline or NiMH
Number of Flashes: 100-1600 times
Recycling Time: 3 seconds NiMH, 6 seconds alkaline
Slave Operation: Optical slave with 2 modes (Slave A, Slave B)
Power Ratio: 7 steps (1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64)
Power Save Mode: Auto Power off after 60 minutes in M mode
Bounce Positions: 0°, 45°, 60°, 75°, 90°
Swivel Positions: Left - 30°, 60°, 90°, 120°, 150°, 180°

Right - 30°, 60°, 90°

Dimensions: 2 13/16 x 6 5/8 x 2 3/16" (72 x 168 x 56mm)
Weight: 8.9 oz. / 252g

Code 5174
Made in China

KEEP IN TOUCH

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ONE YEAR UNCONDITIONAL GUARANTEE

If for any reason, this ProMaster product fails within ONE YEAR of the date of
purchase, return this product to your ProMaster dealer and it will be
exchanged for you at no charge. ProMaster products are guaranteed for ONE
FULL YEAR against defects in workmanship and materials. If at any time after
one year, your ProMaster product fails under normal use, we invite you to
return it to ProMaster for evaluation.

www.promaster.com | Fairfield, CT 06825