Metz 34 AF-3N Camcorder User Manual


 
8. Autofocus measuring flash
The integrated AF red-light beam of the mecablitz
supports the automatic focusing of autofocus TTL
cameras. When the prevailing light is insufficient
for automatic focusing, the mecablitz will project
a pattern
of red vertical stripes onto the subject as
soon as the camera’s release
is lightly touched.
The camera’s autofocus system then focuses the
picture by this striped pattern.
Notes:
When the camera’s autofocus system is on, the
electronic circuit will automatically activate the
autofocus measuring flash whenever the
prevailing light is insufficient for the exposure.
The autofocus measuring flash cannot be
activated in every exposure mode or AF mode of
the camera. In most cases, it will only support
the SINGLE-AF function (see camera’s operating
instructions) without follow-up focusing.
The range of the autofocus measuring flash
depends on the speed of the lens (maximum
aperture)! With an f/1.8 standard lens of 50 mm
focal length, the range is approx. 6-10 m (depen-
ding on the sensitivity
of the camera’s AF sen-
sor).
Low-speed lenses, e.g. with an aperture of
f/5.6
or f/8 (such as zoom lenses), significantly
restrict
the range of the autofocus measuring flash!
14
Fig. 5: AF red-light beam
AF red-light beam