Mamiya 645 AFD III, Instructions Manual

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The film's ISO value is automatically set via the camera's magazine. Any adjustment to the ISO
is instantly recognized after the setting is locked and the Shutter Release Button is pressed half-
way. When magazines with different ISO settings are installed on the camera, the TTL flash
connection instantly recognizes the change.
To use the TTL feature will all Metz flash units, a Metz SCA 3952 Adapter is required. Please refer
to the following chart for compatibility and any additional adapters that may be required:
Flash exposure automation
automatically adjusts the flash
output for a correct exposure,
even when using filters, a bellows,
extension tubes, etc. However,
manual compensation is required
due to differences in film-surface
reflection characteristics. The
amount of compensation is deter-
mined by experimentation.
1. Mount the SCA 3952 Adapter on the Metz flash.
2. Insert the adapter into the camera's hotshoe, and
then tighten with Lock Screw (A).
3. Set the exposure mode, and then check the shutter
speed and aperture.
With TTL flash photography, the reflection off the film is metered and the flash's output is
automatically adjusted.
Consequently, TTL flash photography is not suitable for all conditions.
For the conditions outlined below, we recommend that you use a flash meter or to use
a manual flash setting:
1) The size of the subject in the viewfinder is relatively small.
2) The background behind the subject is extremely bright or there is a strong reflective
object in the background.
3) The background behind the subject if very dark.
4) The film has a narrow exposure latitude.
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