Gossen DIGIFLASH 2 - Handbuch (Seite 37)

GOSSEN Foto- und Lichtmesstechnik GmbH
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2.3.3 Fill-in flashes
Using fill-in flash makes it is necessary to coordinate flash and ambient light. For this purpose
you should bring your DIGIFLASH 2 into incident light measuring method and proceed as
following described.

First you take a reading of
the background in the function „ambient light“. Transfer the EV
value from the display to the setting window above. Then set the corresponding combined
shutter speed and f/stop to your camera, while taking care that the shutter speed must be
equal to the flash sync speed.

In the second step, you determine the fill-in flash by measuring the flash in the incident
mode. From the shadow area of the subject you direct the DIGIFLASH 2 towards the
camera in such a way that the meter will only receive the fill-in flash and the stray light,
but definitely not the main light source. The resulting EV value should be lower by 1 to 2
stops than the EV value for the ambient light. If not, adjust the power of the flash unit or
change the distance to get the desired EV value.