Leica M6 TTL, Instructions Manual

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TTL flash mode
This mode is available with the LEICA SF20
and any other SCA 3000 flash unit equipped
with the SCA adapter 3501. As soon as the
requisite quantity of light has been emitted, the
camera electronics of the LEICA M6 TTL
transmit a "stop" signal to the flash unit, which
immediately interrupts light output. This flash
mode offers the advantage that all factors
influencing exposure of the film (e.g. filters and
aperture changes) are automatically taken into
account.
In addition, the LEICA M6 TTL transfers the
film speed set on the camera to the flash unit.
Flash units equipped with the corresponding
displays can thus automatically adjust their
range settings. The film speed setting cannot
be influenced by means of the flash unit.
Settings for the TTL flash mode
After switching on the flash unit and setting it
to "TTL", proceed as follows:
1. Turn the shutter speed dial of the LEICA M6
TTL to the flash synchronising speed " "
(1/50 s) or select a slower shutter speed (or
"B") for special effects.
2. Set the desired aperture or that required for
the subject-to-camera distance.
3. Prior to any flash exposure, switch on the
exposure meter by lightly pressing the
shutter release button. If the release button
is pressed down completely and the
exposure meter remains switched off, the
flash unit may not be fired.
Note:
since the aperture selected on the
LEICA M6 TTL is not transferred to the flash, it
must be set manually on the flash unit to
enable the range to be read off on the latter, if
the flash has such a display.
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