Mamiya 645DF, Instructions Manual

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Long Exposure mode (Bulb Mode) Backlight button
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Long Exposure Mode (Bulb Mode)
To expose film longer than 30 seconds, adjust the shutter speed to “ B ” (bulb). In order to
prevent camera shake, use an electromagnetic shutter release and tripod.
1. Turn the exposure mode dial and set it to “ M ”
(manual mode).
2. Turn the front dial to select “
bulb
”, then turn
the rear dial to set the aperture.
3. Determine the composition, focus, then take
the picture. The shutter remains open as long
as the shutter release button is pressed.
As the camera is electronically controlled even during exposures, it is
recommended to replace batteries before bulb exposure. (See page 13.)
To see the main panel at night or in dark places,
press the backlight button
/ .
The backlight will go on approximately 20
seconds and go off unless there is another
operation.
If the backlight button is held down for one second, the light will remain on until
the button is pressed again.
When the backlight is on, the camera will not go into sleep mode however battery
power may drain quickly.
Setting long exposures
When photographing under normal conditions, the shutter speed can be
adjusted for longer exposures.
Turn the front dial for shooting time settings.
New time settings include 1, bulb,
tIME
(Time),
2,4,8,15,30 and 60.
Using the “tIME” (Time) setting, the shutter will open and close according to the
number of times you press it.
“tIME” (Time) photography is electronically controlled so it is possible that the
batteries will drain quickly. In this case, please replace batteries with new ones.