Mamiya RB67 - How to Read Depth of Field; Focusing and Determining Depth of Field; Using the Distance Scale for Depth of Field

• How to Read Depth of Field
1. Focus on the subjecl, determine the
aperture setting.
28
2. Depress the depth of field preview
lever, and the depth of field can be observed
on the ground glass focusing screen.
1. Turn the distance scale ring (29)' and
align the figure representing the focused
distance with the center index mark on the
depth of field scale (30).
The two distances (on both sides of the
center index mark) opposite the same
figures as the ac tu al lens aperture on the
depth of field scale are the near and far
limits of depth for a given distance and lens
aperture.
For
example, when photographing a
subject 15 feet away with the 90mm lens at
an aperture of f / 11 , objects from about 30
to 10 feet will be in focus.