Metz 34 AF-3 P Camera Flash User Manual


 
12
7. Autofocus measuring flash
Notes:
The AF measuring flash is only supported in the
camera's "SINGLE AF" mode.
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 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 sensor).
Due to parallax between camera lens and AF
measuring flash, a minimum distance of 1 m to
the subject is necessary. The AF measuring
flash will not cover the subject if the shooting
distance is less than 1 m. In such instances
ensure a higher ambient light level.
Low-speed lenses, e.g. with an aperture of
f/5.6 or f/8 (such as zoom lenses), significant-
ly
restrict the range of the autofocus
measuring flash!
• The AF measuring flash is not activated in the
camera's continuous focusing mode or when
the autofocus system is switched off.