Dörr DAF-34 Notice D'utilisation page 17

photography in order to avoid incorrect exposures.
Using the DÖRR DAF-34 with TTL mode the x-synchronization of
your camera will be set automatically.
The version Pentax additionally offers flashing with the second
shutter curtain. Move the respective switch to the right. Switch
in the middle position is for "normal" flash with the first shutter
curtain.
Fill-in Flash in Daylight
On sunny days the brightness is sufficient
for exposures without flash, however
the position of the sun can project
shadows onto your object. Even backlit
shots often have under exposed central
figures. Therefore flash photography is
recommended even with sufficient daylight.
The above mentioned problems therefore
will be corrected and the pictures more
colorful, with richer contrasts and more
brilliance.
Slow Synchronization
When the ambient illumination of your object is poor, it can be
difficult to balance brightness for both subject and background.
For these situations a longer shutter speed is recommended.
The main subject is therefore illuminated by the flash, whereas
the background lighting (which would appear darker with
standard flash settings) is adjusted by the longer exposure time.
Slow synchronization is a versatile instrument for special effects,
e.g. portraits taken at night with illuminated surroundings such as
found at fairgrounds, outdoor events or shopping malls.
In order to obtain a longer shutter speed of your choice, the
camera must be set in auto aperture mode. Some camera models
will allow the slow sync photography also in the auto program or
auto exposure mode. We recommend consulting your camera's
instruction manual. In order to avoid blurred backgrounds, it is
recommended to use one of the various Dörr tripods.
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