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Specifications of Mamiya RB67 Pro-S
Camera Body
Type:
6 x 7cm lens-shutter type, single-lens
reflex camera
Lens mount:
Bayonet mount (with safety lock ring)
Viewfinder:
Horizontal format index mark interlocks
with revolution of revolving adapter (Ver-
tical format based on fixing index line on
focusing screen.)
Focusing hood:
Single-action opening and closing, with
mounting lock.
Interchangeable.
Finder magnification is 2.5X.
Magnifier is also interchangeable.
Focusing screen:
With fresnel lens Interchangeable
Revolving adapter (exclusively for Pro-S):
Vertical and horizontal positions revolving
up to full 90° rotary system, with format
indication interlocking mechanism.
By R-lock system, interchangeable with
other adapters.
By G-lock system of revolving adapter,
G-lock-type film holders are attachable.
Focusing:
Bellows extension system with rack
pinions.
Maximum extension 46mm. With focusing
knob fixing device.
Shutter and mirror cocking:
Single-action
cocking by lever on
camera body side.
Others:
Accessory shoe is provided.
Shutter release button can be locked to
prevent releasing the shutter accidentally
Standard Lenses:
Mamiya Sekor 90mm f/3.8 with lens hood
Mamiya Sekor 127mm f/3.8 with lens hood
Filter screw diameter: 77mm
Aperture: Full automatic diaphragm (with
depth-of-field preview lever). f/3.8 to 32
(with click-stop for half-step aperture
settings).
With mirror-up photographing feature
(independent mirror release) device.
Shutter:
Seiko # 1 shutter
1 to 1/400 second and T (Time)
Flash synchronization:
M-X full synchronization
Pro-S 120 Roll Film Holder
Film used:
120 roll film 10 exposures; 6 x 7cm format
Actual negative size:
56 x 68.4mm
Film advance:
One-stroke lever film advance (After
winding, can be wound in several short,
definite strokes)
Automatic double-exposure prevention.
Film wind stop automatic release.
Multiple exposure is obtainable optionally.
Film counter:
Automatic resetting type; Red index mark
disappears upon completion of film wind-
ing.
Provided with dark slide dislocation pre-
ventive device and memo clip.
Dimensions:
(Camera body with roll film holder)
Height: 5-21/32in. (144mm)
Width:
4-3/32in. (104mm)
Length: 8-31/32in. (228mm)
(with 9Omm f/3. 8 lens)
8-17/321n. (217mm)
(with 127mm f/3.8 lens)
Weight:
Camera body with revolving adapter and
focusing hood
3 lbs., 3-2/16 oz. (1450g)
Pro-S roll film holder 15-14/16 oz. (450g)
90mm f/3.8 lens 28-6/16 oz. (805g)
127mm f/3 8 lens
26-7/16 oz. (750g)
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