D-Ttl Flash Mode; D-Ttl 3D Flash Mode; I-Ttl Flash Mode - Metz MECABLITZ 44 AF-4 Mode D'emploi

4.2 D-TTL flash mode

This flash mode is only possible in conjunction with digital Nikon SLR
cameras of Group D (see Table 1). Digital SLR cameras do not support
the normal TTL flash mode of analog cameras.
The D-TTL flash mode is an advanced variant of the normal TTL flash mode of
analog cameras. Prior to shooting a series of weakly visible measuring pre-
flashes are fired by the flash unit. The camera evaluates the reflected pre-
flash light so that the subsequent flash exposure is optimally adapted to the
prevailing photographic situation (see operating instructions of your camera).
Setting procedure
• Mount the flash unit on the camera.
• Switch on the flash unit and the camera.
• Lightly touch the camera's shutter release for data exchange between flash
unit and camera.
• Continue to depress the "Mode" button until "D-TTL" flashes on the LC dis-
play.
• The setting becomes instantly effective. The LC display returns to its normal
state after approx. 5 sec.

4.2.1 D-TTL 3D flash mode

In this mode with D-TTL flash control (see above) the camera additionally
takes into account the flash-to-subject distance.
This flash mode is only available with "D-AF Nikkor lenses". Some came-
ras do not support the D-TTL 3D flash mode for SPOT exposure metering.
This flash mode will then either be automatically cancellled or it cannot be
activated so that the normal D-TTL flash mode will be performed.
To set the D-TTL 3D flash mode the flash head must be in the normal position,
i.e. it must not be swivelled down.
For D-TTL 3D flash mode, both the camera and the lens must support the eva-
luation of distance data (see operating instructions for the camera and speci-
fications of the lens).
Setting procedure
• Mount the flash unit on the camera.
• Switch on the flash unit and the camera.
• Lightly touch the camera's shutter release to induce a data exchange be-
tween the flash unit and the camera.
• Continue depressing the " MODE " key on the flash unit until "D TTL" and
the " "symbol flash in the LC display.
• The setting becomes immediately effective and is automatically saved after
5 seconds.

4.3 i-TTL flash mode

This flash mode is only available for Nikon digital SLR cameras of
Group E (see Table 1) in conjunction with the 44 AF-4i N flash unit.
The standard TTL flash mode of analog cameras is not supported by
the digital SLR cameras.
i-TTL flash mode is an advanced variant of the standard TTL flash control of
analog cameras. When shooting a picture, several weakly visible preflashes
are fired by the flash unit prior to exposure. The camera then evaluates the
reflected preflash light so that the subsequent flash exposure is optimally
adapted to the prevailing photographic situation (see operating instructions
of the camera).
Setting procedure
• Mount the flash unit on the camera.
• Switch on the flash unit and the camera.
• Lightly touch the camera's shutter release to induce a data exchange be-
tween the flash unit and the camera.
• Continue depressing the " MODE " key on the flash unit until " TTL " flashes
in the LC display. When using Group E cameras, the i-TTL flash mode is
automatically activated on the flash unit. The " i " symbol is not indicated.
• The setting becomes instantly effective and is automatically saved after
5 sec.
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