Shutter Priority Ae (Tv); Manual Mode (M) - Mamiya 645DF Instructions Manual

Exposure Modes (continued)

Shutter Priority AE (Tv)

Set the desired shutter speed and the camera selects the optimum aperture
accordingly. Fast shutter speed can be used to freeze motion, and slow shutter speed
can be used to blur motion on purpose.
The aperture value will blink when the subject is too dark or too bright for a correct
exposure. To obtain the correct aperture, adjust the shutter speed value until the
aperture value stops blinking and remains lit.
1. Increment of the shutter speed can be set to your preference.
Custom settings (C-01 on page 84)
2. Rotation direction of the dials to change the values can be selected.
Custom settings (C-08 on page 84)
3. The selected shutter speed can be locked.
4. Even if the leaf shutter lens is attached, the camera can be programmed to use
the focal plane shutter. Custom settings (C-17 page 85)
1. Turn the exposure mode setting dial to "Tv"
(shutter priority AE) position.
2. Turn the front or rear dial to set the desired
shutter speed.
.
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Manual Mode (M)

This mode is used to set both the aperture and shutter speed for total exposure
control.
Varying shutter speeds can be selected, including "bulb", "tIME" and manually from 60
mins to 1/4000 sec. Aperture values can be set from maximum to minimum aperture.
1. The selected aperture and shutter speed can be locked.
2. Increment of the aperture and shutter speed value can be set to your preference.
Custom settings (C-01 on page 84)
3. The assignments of the front and rear dials can be swapped.
Custom settings (C-06 on page 84)
4. Rotation direction of the dials to change the values can be selected.
Custom settings (C-08 on page 84)
1. Turn the exposure mode setting dial to "M"
(Manual) position.
2. Turn the rear dial to set the desired aperture.
3. Turn the front dial to set the desired shutter
speed.
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