Manual Flash Exposure Correction In Ttl Flash Mode - Metz MECABLITZ 44 AF-1 digital Mode D'emploi

5.3 Manual flash exposure correc-
tion in TTL flash mode
This function must be configured on the
camera, see camera operating instruc-
tions.
The automatic flash in most cameras is
set to 25% reflectance (average reflec-
tance of flash subject).
A dark background which absorbs a lot
of light or a light background which is
heavily reflective (e.g. backlit shots) can
cause the subject to be over or underex-
posed.
To compensate for the above effect, the
flash output can be adjusted manually
with the correction value of the shot.
The correction value is based on the con-
trast between the subject and the bak-
kground.
Hint:
A dark subject in front of a light background
= positive correction value.
A light subject in front of a dark background
= negative correction value.
Exposure correction through alteration of
the lens aperture is not possible, as the
camera's automatic exposure views the
altered aperture as the normal working
one.
Manual flash exposure correction in TTL
flash modes can only take place if the
camera supports this feature (see
camera operating instructions).
Don't forget to delete the TTL exposure
correction on the camera after the shot.
Highly reflective objects in the intended
shot can disturb the camera's automatic
exposure. This results in underexposu-
re. Remove reflective objects or set a
positive correction value.
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