Modelling Light - Dörr DFX-300 Notice D'utilisation

06.3.4 Setting the flash output with a flash exposure meter
(optional)
Release a test flash (see chapter 05.2) and use a flash exposure meter to measure
the aperture setting. Adjust flash by using the power adjustment button: (18a)
= increase power, (18b) = decrease power. Decreasing the flash power by 1.0
corresponds to a change in f-stop (=1EV). Changing the flash power is possible in
steps of 0.3, this relates to 1/3 f-stop (EV).
For example:
Your flash meter shows f-stop 16 1/3. Your preferred f-stop setting is 11. The diffe-
rence in f-stops is 1 1/3 (EV). The power level indicator (15) shows 4.7. Decrease the
power with the adjustment button (18b)
vel indicator (15) shows the value of 3.3. Your picture will now be exposed correctly.
06.3.5 Setting flash output by testing
Take a picture with your desired f-stop setting. Judge the exposure by checking the
picture result on the monitor of your camera. Is the picture too bright, reduce the
flash output using adjustment button (18b)
derexposed, increase the flash output using adjustment button (18a)
power. Take another picture and adjust the flash output if necessary until you reach
the optimum of exposure.

06.4 MODELLING LIGHT

CAUTION
CAUTION: Never touch the modelling light bulb with your bare hands. Greasy
residue may cause splintering of the modelling light bulb during use!
The DÖRR DFX studio flash is equipped with a modelling light (8). This helps to
judge shadows before releasing a picture. Furthermore the autofocus function of
your camera works faster and more precise when working with the modelling light.
Press the On/Off button modelling light (20) to turn on or off the modelling light.
When turned on, the LED modelling light indicator (20a) lights up red. After turning
on the modelling light the power level indicator (15) flashes for about 5 seconds.
During this time you have the possibility to adjust power of the modelling light with
buttons (18a increase power or 18b
to 0.8.
While the flash is recharging, the modelling light will be off. When the modelling
light lights up again, the studio flash is ready for next release.
06.5 PHOTO CELL/SLAVE CELL
The DÖRR DFX studio flash is equipped with a photo cell/slave cell (14). This cell
reacts to any kind of light source and triggers the DFX studio flash simultaneously.
This enables you to trigger more studio flashes simultaneously. If you are working
with on-camera flash, please mind to turn the flash to manual performance level,
this ensures that pre-flashes of the on-camera flash are turned off. Flash source and
photo cell/slave cell should be in direct line of sight. With On/Off button (16) the
photo cell is either activated or deactivated. The LED photo cell (16a) lights up in
red and shows an activated photo cell/slave cell.
06.6 FLASH READINESS
As soon as the DÖRR DFX studio flash is ready to flash again, the LED standby signal
(19a) lights up in red.
by 1 1/3 f-stops (EV) until the power le-
=decrease power. Is the picture un-
= increase
= decrease power) in 8 steps from 0.1
06.7 ACOUSTIC STANDBY SIGNAL
The DÖRR DFX studio flash offers an acoustic standby signal. Press On/Off button
standby acoustic signal (17) to turn on or off the beep sound. The standby acoustic
signal LED (17a) lights up in red when this function is activated and you will hear a
beep sound when the flash is ready to trigger again.
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