Long-Time Synchronization - Dorr DAF-44wi Gebrauchsanweisung

On the rear side of the flash you can read off the position of the bounce angle. When bouncing
the flash head, no flash range is indicated on the LC display as the light path length does not
comply with the distance to the object but with the distance: flash ➔ reflecting surface ➔
object. Please consider that indirect flash photography reduces the flash range. In TTL mode
the flash and the camera automatically ensure proper dosage of the flash´s power output.
With indirect flash photography the power zoom function is inactive. Please select the focal
length manually. Further the flash range, film speed and aperture are not indicated on the LCD.
Still, TTL flash control is active.
Indirect Flash Photography with Reflecting Plate
If you want to flash indirectly but no adequate reflection surface (white ceiling/white wall) is
available, you can use the built-in reflecting plate. The advantage in comparison to "regular"
indirect flashing: The distance flash ➔ reflecting surface ➔ object is shorter. The reflecting
plate is integrated in the flash head above the diffuser plate. To use it, slide it out until the
stopper is reached. The flash head must be tilted upwards.
Diffuser Plate
Especially with portraits a softer illumination is advantegous. Alternatively to indirect flashing
this can also be achieved by using a diffuser plate. The diffuser plate is integrated in the flash
head beneath the reflecting plate. To use it, slide it out until the stopper is reached and the
diffuser plate flaps over the reflector. Please consider that the flash range reduces when using
the diffuser plate. In TTL mode the flash and the camera automatically ensure proper dosage
of the flash´s power output. The flash range shown on the LCD may vary slightly.
Red-Eye Effect
With flash photography, the object´s eyes may appear red in a picture. This is caused by flash
light reflecting off the blood circulated retina. This phenomenon especially appears when the
flash is located close to the lens axis. Weak ambient light even supports the red-eye effect
as the pupils will widen. A secure method to avoid the red-eye effect is to use indirect flash
photography. But even with direct flashing, the design of the DÖRR DAF-44 Wi reduces the
red-eye effect as the flash head is located as far as possible from the optical axis. The larger
the flash angle of incidence the lesser the red-eye effect.

Long-Time Synchronization

To achieve a balanced light ratio between object and background in weak ambient light,
a longer exposure time is recommended. Thereby, the main object in the foreground is
illuminated by the flash while the background is adjusted to the brightness of the main object
through a longer exposure time (with "regular" flashing the background would disappear in
the dark), Extended time synchronization helps you to achieve great effects, e.g. by taking
portraits at a fair ground or Christmas market with an evening setting as background or in a
neon-lit shopping center. To set your camera to a longer exposure time of your choice, set your
camera to shutter priority mode or to manual exposure control. Some camera models allow
for extended time synchronization also in program mode or aperture priority mode. To avoid
blurred pictures, the use of a DÖRR tripod is recommended.
Using the Flash with Daylight
Although on sunny days the light may be sufficient to restrain from using the flash, depending
on the position of the sun more or less unsightly shades may appear on faces and other
objects. Also, shots made with back light often cause underexposure of the the main object.
Therefore, it is advisable to use the flash also in sufficient daylight. Your pictures will show
more intense colors and rich contrasts. The DÖRR DAF-44 Wi supports the daylight flash by di-
screetly lightening up the foreground of your picture, e.g. Nikon type: BL setting (balanced fill).
AF Red Light Beam
The DÖRR DAF-44 Wi is fitted with an AF red light beam. AF reflex cameras require a minimum
of contrast for proper distance settings. In weak light conditions the available contrast of the
object may be insufficient for automatic focusing. In this case your flash projects a contrast
pattern onto the object when the camera´s shutter release is slightly touched. With the
support of the AF red light beam, the auto-focus system of your camera can now recognize
structures and even in darkest rooms the exact distance can be determined quickly and
precisely. The AF red light beam covers a range of approx. 1 to 8 m.
Note: Depending on the camera model it may happen that the camera´s built-in AF red light
beam has priority. In this case the AF red light beam of the flash will not be activated.
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