Multiple Exposures; Infrared Photography - Mamiya M645 Super User Manual

When the Multiple Exposure Lever is
aligned with "MULTI", the double-
exposure prevention mechanism is
disengaged, so that the shutter can be
cocked (and even with the Wind-up
Crank turned) without moving the film,
making multiple exposures possible on
tile same frame.
(When making multiple exposures, the
exposure counter will not advance.,
*Remember to return the lever to the
white square mark position upon
completion of the multiple exposure.
If you forget to return the lever, multi-
ple exposures will continue to occur
on and the next frame.
w
hen using infrared film, it is neces-
to
sary make a focusing adjustment in
order to achieve accurate focus. This
is becuase the focus position of the
image deviates from normal since the
infrared ray wavelength is longer.
Focusing Adjustment Procedure:
1. The red dot or line on the right side
of the lens center reference line is
the infrared mark.
2. After focusing in the usual manner,
check the distance on the Distance
Scale that is aligned with the center
reference mark of the lens. Make
the focusing adjustement by turning
the Focusing Ring slightly in the
direction of the arrow in the accom-
panying photograph so that the dis-
tance just observed is aligned with
the infrared mark. Focus is now
correct for infrared and you can
release the shutter.
*For information regarding the proper
filter and exposure, refer to the data
sheet packed with the film. Always
use the appropriate filter for the lens.
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