Mamiya RB67 Pro SD User Manual page 30

18. Time (T) exposures, Flash Photography
To make a time exposure, first set the
shutter speed ring to T and screw a cable
release into the bulb socket. After doing so,
the shutter will remain open upon depressing
the shuner release button.
The shutter will be closed by pressing the
plunger of the cable release without giving any
shock to the camera.
The shutter can also be closed by following
procedures.
1. depressing the bulb socket by finger
2. turning the shutter speed ring toward 1 sec.
(1)
3. pressing down on the shutter cocking lever
about 30°
Do not move the shutter cocking lever until
l
just before closing the shutter.
When the shutter is closed by the shutter
l
cocking lever, the light baffle in the camera
body drops down slightly; however no fog-
ging occurs,
28
When the shutter is closed by the shutter
cocking lever, the lever is locked by the
reverse motion stopper and does not return
to its original position. When the shutter is
cocked by further depressing the lever, the
lever returns to its original position.