Metz MECABLITZ 34 AF-3 Pentax User Manual download pdf (Page 29)

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-

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.

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Metz MECABLITZ 34 AF-3 Pentax User Manual Page 29