Automatic Af Measuring Beam; Triggering Control (Auto-Flash) - Metz MECABLITZ 44 AF-1 digital Bedienungsanleitung

11 Automatic AF measuring
beam
The automatic AF measuring beam
activated in the flash unit by the camera
when the ambient lighting conditions
become inadequate for automatic focu-
sing. A striped pattern is projected onto
the subject which the camera can use to
focus. Depending on the camera's activa-
ted AF sensor, the AF beam has a range
of approximately 6 m to 9 m (with a stan-
dard 1.7/50 mm lens). Parallax error
between lens and AF measuring beam
limits the close-up range with the AF
measuring beam to approximately 0.7 m
to 1 m.
To activate the automatic AF measuring
beam the camera must be set to the
„Single AF autofocus mode and the
flash unit must indicate flash readiness.
Some camera models support only the
camera's internal AF measuring beam.
In this case, the automatic AF measu-
ring beam of the flash unit is not activa-
ted (as in the case of compact cameras;
see the camera's operating instruc-
tions).
90
Low-speed zoom lenses can significantly
curtail the range of the AF measuring
beam!
is
Some cameras support the AF measu-
ring beam
the camera's central AF sensor. If a peri-
pheral AF sensor is selected, then the AF
measuring beam
in the flash unit!
12 Triggering control
(auto-flash)
On some cameras the flash will not be
fired when the prevailing light is suffi-
cient for an exposure. When the camera
shutter release is depressed, no flash
exposure is triggered.
In various cameras the triggering control
only works in the full program mode or
„P" program or must be activated on the
camera (see camera operating instruc-
tions).
in the flash unit only with
will not be activated