Metz 36 AF-4 O - Manual (Page 79)

5.5 Zoom reflector
The zoom reflector of the mecablitz has four zoom positions
for optimal light coverage and adaptation of the guide
number to the focal length of the lens.
28 mm Wide-angle illumination for focal lengths
as of 28 mm
35 mm Wide-angle illumination for focal lengths
as of 35 mm
50 mm Normal illumination for focal lengths as of 50 mm
85 mm Telelens illumination for focal lengths as of 85 mm
The zoom reflector can be swivelled upwards into four lock-
ing positions (e.g. for bounce flashes):
30°, 45°, 60° and 90°.
For normal flash operation the reflector is in the horizontal
position: 0°.
5.6 AF measuring beam
The AF measuring beam is activated by the camera electro-
nics when the ambient lighting conditions are insufficient for
automatic focusing. The AF beam emitter then projects a
striped pattern on to the subject, and the camera uses this
pattern to focus automatically.
To enable activation of the AF measuring beam by
the camera, the camera lens must be set to AF. On
the camera, the AF mode “Single-AF” or “ONE-SHOT-
AF” must be selected. Low-speed zoom lenses may
significantly reduce the distance range of the AF mea-
suring beam.
The striped pattern of the AF measuring beam only supports
the camera’s central AF sensor. When using cameras with
several AF metering areas we therefore recommend to acti-
vate the camera’s central AF metering zone.
Some cameras may only activate the AF illuminator inte-
grated in the camera. In such an event, the AF measuring
beam emitter of the mecablitz will not be activated.
Please refer to the corresponding information given in
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707 47 0178.A2 36AF-4-CNOPS 05.06.2008 8:29 Uhr Seite 79