Mamiya RB67 Pro SD User Manual page 2

Congratulations on your wise decision to purchase
the Mamiya RB 67 Professional SD (Pro-SD)
The RB67 Pro-SD is the latest addition to the long-selling RB67 Series
which was first released in 1970. Due to its innovative 6x7cm revolving back
format, the RB67 has been highly recognized throughout the world as the
genesis of the medium format cameras.
Specifically, the camera features an expanded interval lens mount diameter
(from 54mm to 61mm, i.e. the same as that of the RZ67), thereby enabling
a wider variety of new, high performance lenses, such as the APO series
to be used. The newly developed extra bright, ultra low dispersion glass
of the APO series lenses and shift lens have gone a long way to improving
system configuration.
With a wide spectrum of accessories, photographic excellence is assured
in a multitude of applications from commercial to portraiture.
Perusing this manual before attempting to use the Pro-SD will minimize the
possibility of malfunctions.