Metz MECABLITZ 44 AF-1 digital - Manual (Page 93)

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out by the flash unit.There is no special
display for i-TTL flash mode.
Some cameras do not support the BL
function in combination with SPOT
exposure metering! In these cases, the
normal i-TTL flash mode is set.
5.1.8 Automatic TTL fill-in flash
mode
For most camera types, automatic TTL fill-
in flash is activated in programmed auto
mode P and variable or subject program-
me in daylight conditions (see camera
operating instructions).
With fill-in flash you can remove annoy-
ing shadows, and in back-lit shots a
balanced exposure can be achieved bet-
ween subject and background. A compu-
ter-controlled measuring system on the
camera ensures appropriate combina-
tions of shutter speed, working aperture
and flash output.
Ensure that the backlight source is not
shining directly into the lens. This will
interfere with the camera’s TTL metering.
There is no adjustment or display for
automatic TTL fill-in flash on the flash
unit in this instance.
5.1.9 Manual flash exposure cor-
rection in TTL flash mode
This function must be configured on
the camera, see camera operating
instructions.
The automatic flash in most cameras is
set to 25% reflectance
(average reflectance of flash subject).
A dark background which absorbs a lot of
light or a light background which is heavi-
ly reflective (e.g. backlit shots) can cause
the subject to be over or underexposed.
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 back-
ground.
Hint:
A dark subject in front of a light back-
ground
= positive correction value.
A light subject in front of a dark back-
ground
= negative correction value.
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