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

6.1.4 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
programme in daylight conditions (see
camera operating instructions).
With fill-in flash you can remove annoy-
ing shadows, and in back-lit shots a bal-
anced exposure can be achieved bet-
ween subject and background. A
computer-controlled measuring system
on the camera ensures appropriate com-
binations 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 mete-
ring.
There is no adjustment or display for
automatic TTL fill-in flash on the flash
unit in this instance.
6.1.5 Manual flash exposure cor-
rection 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.
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