Pentax 645 - Page 35

Setting photographic mode
Depressing of the "up" (front) or "down" (rear)
selecting button, while simultaneously holding
down the mode button as in the picture, adjusts the
photographic modes in the external LCD Window
as shown on the right column.
Setting f/stop and shutter speed
When employing either the Aperture-priority or the
Shutter-priority AE mode with the aperture ring set
at the "A" (auto) position, or when using the
Metered manual mode with the aperture set to the
respective f/stops, the selection of a f/stop or
shutter speed is possible by depressing one of
the selecting buttons. The LCD indicates an
incremental change in steps by a single depressing
of the selecting button, and continued changes by
maintaining pressure upon it. The maximum point
by moving the "up" button is 1000 (1/10CX3 sec.) or
F22 ( ); the "down" button will stop at its lowest
point of 15" (15 sec.) or F.2.8 ( ).
The f/stop will be displayed within the aperture
range of the lens in use.
Aperture set to the "A" (auto) position:
= Shutter-priority AE
=Aperture-priority AE
= Programmed AE
(up
button)
(down
button)
Displayed f/stop or shutter speed indicates the
numerical value automatically set at the time
within the camera's exposure control circuitry.
Aperture set to each f/stop and also at the time of
blank exposures:
= B (Bulb)
=60 (1/60 sec., fixed)
= Metered manual
=Aperture-priority AE
(up
button)
(down
button)
Only M 1000, 60 or B functions when
releasing the shutter without a film holder.
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