Mamiya RB67 - Focusing Screen and Revolving Adapter; Focusing and Viewing; Changing Picture Format with Revolving Adapter

• Focusing Screen
Various types of framed focusing
screens are available for the photogra-
pher's convenience.
First remove the focusing hood, then
take out the focusing screen (13) while
holding both si des. To attach it , hold
each side and insert the focusing
screen into the top of the camera body
and press down lightly.
How to view the focusing screen
A vertical picture format is indicated
by solid lines and a horizontal picture
format is indicated by dotted lines on
the focusing screen.
14
Focusing and Vie~ing
When the focusing hood is open, and
the shutter is cocked, an image is visible
on the ground glass of the focusing
screen (13).
Turn
the focusing knob (5), adjust the
focus, and compose the picture. Oepth
of field of the aperture becomes visible
on the ground gl ass focusing screen by
fully depressing the depth of field pre-
view lever (31) on the lens. When re-
moving your finger , the lever will return
to its original position and the lens
aperture will fully reopen.
Revolving Adapter
When the horizontal format mark (15)
of the revolving adapter is facing up -
ward, a horizontal format will result.
To compose a
vertical photograph , turn
the revolving adapter clockwise until it
stops . To change fram vertical to hori-
zontal, turn the revolving adapter coun-
terclockwise. In either case, be sure to
turn the adapter a full 90 ° until it clicks
and stops. If the adapter is stopped
halfway , the shutter release button can-
not be pressed.
NOTE:
00 NOT turn the revolving adapter
while the sh' utter release button is being
pressed.