is particularly the case with a dark subject in front
of a bright background (the subject will be
underexposed) or a bright subject in front of a dark
background (the subject will be overexposed).
To overcome this problem in such a photographic
situation and still achieve a correct exposure in the
TTL flash mode, some cameras permit the flash
intensity to be influenced in TTL and E-TTL mode
(please refer to the operating instructions for the
given camera).
Flash units with an LC-display (40 MZ-...,
44 MZ-2, 50 MZ-..., 54 MZ-... and 70 MZ-...) adapt
the indicated maximum flash range in TTL or auto
mode A to the selected flash exposure correction.
If a flash exposure correction is made in
conjunction with the EOS 1, 1N, 1V, and 3, then +/–
marks appear additionally in the viewfinder.
Note:
Flash exposure correction is not possible in all
programmed image control modes (portraits,
landscape, close-ups, action, night program) and in
full auto mode (green square).
Some cameras permit flash exposure corrections
to be directly made on the camera. A flash
exposure correction set on the mecablitz has
priority over a flash exposure correction set on the
camera.
Any flash exposure correction can be combined
with a correction setting for ambient light (on the
camera).The flash exposure correction then
influences the illumination by flash, while the
correction setting on the camera controls the
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