Dorr DAF 42 - Indirect Flash Photography; Indirect Flash Photography with Reflecting Plate; Diffuser Plate; Red-Eye Effect

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Indirect Flash Photography
The DAF-42 equipped with a bounce and swivel head which allows you to change the
direction of the ash up to 270° horizontally and up to 90° vertically. You can avoid
direct ashing onto objects by positioning the ash towards a reection surface.
This surface should be neutrally white (e. g. white ceiling, white wall) as the light will
be reected in the color of the surface ashed on. This leads to color distortions
when using colored reecting surfaces. Indirect ash photography oers you the
following advantages:
• avoiding harsh shadows
• avoiding red eyes
• soft outlines and even illumination (particularly suitable for portraits)
• avoiding disturbing light reections o non-metallic surfaces such as windows, glasses, or water.
On the backside of the ash you can read o the position of the bounce angle. When tilting the ash head,
no ash 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: ash- reecting surface- object. Please consider that indirect ash photography
reduces the ash range. In TTL mode the ash and the camera automatically ensure proper dosage of the
ash´s power output. With indirect ash photography the power-zoom function is inactive. Please select the
focal length manually. Further the ash range, lm speed and aperture are not indicated on the LC display.
Still, TTL ash control is active.
Indirect Flash Photography with Reecting Plate
If you want to ash indirectly but no adequate reection surface (white ceiling/white wall) is available, you
can use the built-in reecting plate. One advantage to “regular” indirect ashing: The distance ash --->
reecting surface ---> object is shorter. The reecting plate is integrated in the ash head above the diuser
plate. To use, slide it out until the stopper is reached.
Diuser Plate
Especially with portraits a softer illumination is advantegous. Alternatively to indirect ashing this can also
be achieved by using a diuser plate. The diuser plate is integrated in the ash head beneath the reecting
plate. To use, slide it out until the stopper is reached and the diuser plate aps over the reector. Please
consider that the ash range reduces when using the diuser plate. In TTL mode the ash and the camera
automatically ensure proper dosage of the ash´s power output. The reecting plate is integrated in the ash
head above the diuser plate. To use, slide it out until the stopper is reached.
Red-Eye Eect
With ash photography, the subject´s eyes may appear red in a picture. This is caused by ashlight reecting
o the blood circulated retina. This phenomenon especially appears when the ash is located close to the
lens axis. Weak ambient light even supports the red-eye eect as the pupils will widen. A secure method to
avoid the red-eye eect is to use indirect ash photography. But even with direct ashing, the design of the
DAF-42 reduces the red-eye eect as the ash head is located as far as possible from the optical axis. The
larger the ash angle of incidence the lesser the red-eye eect.
Flash Synchronization
Digital Cameras: All shutter speeds can be used for ash photography. There are no restrictions.
Analog Cameras: Synchronization time refers to the shutter speeds which will allow ash photography.
Special attention must be paid in the case of short shutter speeds. Each camera model features a “shortest”
synchronization - the so-called x-synchronization. Please review the instruction manual of your camera.