Mamiya 645 PRO TL Benutzerhandbuch

1. Attach a  Metz flash unit which

features TTL function to the camera.

Attach the SCA396 module to the
camera’s flash shoe. Connect the
module’s coiled cables to the camera
and the flash unit.

Set the film speed dial on the SCA396
module to the IS0 rating for the film

in use. The range of IS0 is 25 to
1250.

2. Move the flash unit’s power switch
to ON and the mode selector to TTL.

3. Turn the camera’s shutter release
selector switch to ON. When the

charge cycle is completed you will

see an illuminated green   readylight

in the middle of the right side of the

finder. When the SCA396 module is
connected, the camera’s focal plane

shutter will automatically set at 1/60
sec, and ignore the settings on the
shutter speed dial between 1/60 to

1/1000, including A and AEL. Slower

shutter speed settings, however,

(1/30 to 4 sec.) are not affected and
will allow flash synchronization.
4. Set lens to the desired f/stop and
shoot. After the exposure is made,
the illuminated green   blinks,

confirming proper flash exposure. If

the illuminated green   does not blink
after exposure, it is possible that

aperture selected is not within the
exposure/distance range of the flash.

In this case, select a wider aperture

setting. When using flash at
maximum distance, which requires

 

 unit, 

time will be longer. Wait for the

readylight to go on before firing the
next frame. Exposure Compensation

with TTL Flash Automation.

Because TTL Flash automation reads

the light reflecting off the subject,

exposure may require manual

 in cases where subject

and background are predominantly
white or black (e.g. bride in white

dress against white background;
bridegroom in tuxedo against dark
background.) In these instances, the

resulting 

 exposure will either be

under-exposed or over-exposed. For

such situations, adjustment of about

1 to 1 

 f/stops, plus   minus, may

be 

Alternatively, a hand held incident
flash meter reading will show proper

exposure in these cases.