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5. Illumination and wide-angle diffuser
31
The mecablitz has a rectangular illumination of
approx. 58° horizontal and approx. 42° vertical.
This ensures complete illumination of the area cover-
ed by a 35 mm lens or longer (24 x 36 mm picture
format).
The supplied wide-angle diffuser widens the illumi-
nation to the area covered by a 28 mm wide-angle
lens.
The following is changed when the wide-
angle
diffuser is used:
- The actual aperture setting in manual
mode. The aperture setting indicated by
the aperture calculator is no longer appli-
cable in this instance. The next smaller
aperture number must be set on the
camera.
- The maximum effective range of the meca-
blitz in auto mode. It is diminished by
approx. one setting on the aperture calcula-
tor.
It may be prudent to check prior to the actual expo-
sure whether the light is sufficient for the selected
aperture. The
procedure for this is described in chap-
ter 9 „Correct-exposure
indication“.
The wide-angle diffuser is placed over the reflector and
pressed on until it locks in at the sides.
The use of lenses with a focal length shorter than
35 mm will result in shadows on both sides due to
declining light. The wide-angle diffuser widens the
illumination area to match the coverage of a lens of
28 mm focal length.
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