The Mamiya RB67 is a professional medium format single-lens reflex system camera manufactured by Mamiya.[1][2] There are three successive models: the RB67 Professional (released in 1970), RB67 Pro-S (released in 1974) and RB67 Pro-SD (released in 1990). It is primarily designed for studio use, but can also be used in the field.

Mamiya RB67
Overview
MakerMamiya
TypeMedium Format SLR
Released1970: RB67 Professional
1974: RB67 Pro-S
1990: RB67 Pro-SD
Production1970-2010
Lens
Lens mountCustom Mamiya breech-lock bayonet mount
Sensor/medium
Recording medium120 film
Focusing
FocusManual
Exposure/metering
ExposureManual
Flash
FlashPC socket
Shutter
Frame rateManual lever winding, unmodified.
Shutter speed range1 s to 1/400 s, Time
General
Dimensions104×139×226 mm (4.1×5.5×8.9 in) (W×H×L) (with the 90 mm f/3.8 lens)
Weight2.69 kg (5.9 lb)
Made inJapan

Details

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The RB67 Professional was introduced in 1970 with a similar look to popular medium format SLR cameras like the Hasselblad V series, but was larger due to the larger 6×7 cm frame size. However, the RB67 differed visually from other medium format cameras of the time, which resemble very large 35mm cameras.[3]: 168 

The RB67 is a modular camera system. This means lenses, viewfinders, ground glass, and film backs are interchangeable. There is no focal plane shutter in the RB67. The RB67's Sekor lenses have mechanical leaf shutters which are cocked on the body and triggered either from a threaded shutter release on the lens or from the body's shutter button. Focusing is performed with bellows on the body. Though the RB67 is a completely mechanical camera there are a variety of motorized film backs and automatic exposure finders that do require batteries.

The camera accepts 120 and 220 film, with interchangeable film backs configured for exposures of 6x7cm, 6x6cm, or 6x4.5 cm. Special-purpose film backs allow for motorized operation, 6x8cm exposures, use of 70mm film, or Polaroid film.[4] Multiple exposures are supported as the shutter and film advance are not linked. It measures 104×139×226 mm (4.1×5.5×8.9 in) (W×H×L) with the 90mm f/3.8 lens mounted, and weighs approximately 2.69 kg (5.9 lb). The flange distance is 110 mm.[5]

The RB stands for "Rotating Back", a concept dating back to early Graflex cameras as early as 1907.[6]: 81  The RB67 film backs can be rotated 90 degrees to provide a horizontal or vertical composition. The orientation is shown in the ground glass with a combination of black frame lines.[3]: 168 

The Mamiya evolution

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Mamiya began producing folding cameras for 120 medium format film in 1940 during World War II. They introduced their first medium format twin lens reflex camera in 1948, and through the 1950s they built TLR cameras similar to the German-made Rolleiflex Automat. In 1957 they introduced the Mamiyaflex C which incorporated several common features from large format press cameras: a bellows focussing system, and interchangeable lenses. It is regarded as the most advanced TLR system of its time.[7]: 154  Despite their initial popularity with the press photographers, by the late 1960s other manufacturers were successfully producing and marketing medium format SLRs with interchangeable film backs, allowing a photographer to change film stocks without changing camera bodies.

While several competitors offered medium format SLR cameras, there was not a successful offering with bellows focusing and a rotating back. New medium format SLR offerings in the late 1960s, like the Pentax 6×7, began to resemble a conventional 35mm SLR cameras. To compete, Mamiya added the RB67 alongside their advanced TLR, the C330, but using a horizontal film path, interchangeable film backs, while retaining the bellows focus and leaf shutter system.[3]: 317  Polaroid exchangeable backs allowed instant photography with many professional cameras including the RB67.[8]: 167 

See also

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References

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  1. ^ Madison, James (13 February 2020). "Five Times Bigger Than Full Frame at a Fraction of the Cost: The Mamiya RB67". Fstoppers. Retrieved 2021-11-14.
  2. ^ Madison, James (12 April 2021). "A Long Term Review Of the Mamiya RB67 Pro-SD". Fstoppers. Retrieved 2021-11-14.
  3. ^ a b c Gustavson, Todd (2011). 500 Cameras, 170 Years of Photographic Innovations. Sterling Signature. ISBN 1402780869.
  4. ^ "Mamiya RB67 Camera Guide - Backs". helluin.org. Retrieved 2023-04-30.
  5. ^ "Guide to Understanding Flange Focal Distance". briansmith.com. 18 March 2016. Retrieved 2022-01-25.
  6. ^ Williamson, David (2003). Comprehensive Guide for Camera Collectors. Schiffer. ISBN 0764319760.
  7. ^ Coe, Brian (1988). Cameras From Daguerreotypes to Instant Pictures. Crown. ISBN 0517533812.
  8. ^ Levy, Michael (2001). Selecting and Using Classic Cameras. Amherst. ISBN 1584280549.

General references

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