User:Teddybushpig

The Mamiya RB67 is a line of professional medium format single-lens reflex cameras which were manufactured by Mamiya beginning in 1970. There are three models in the RB67 line: the RB67 Professional, the RB67 Professional S, and the RB67 Professional SD. There is a wide variety of lenses, film backs, and accessories also available for the system.

RB67 Professional The RB67 Professional was introduced in 1970. It included several features to separate it from other medium format SLRs such as the Hasselblad and Pentax 6x7. Most notable is the 'revolving back' from which the RB67 gets it's name. Due to the camera's format (6 centimeters x 7 centimeters) and size, it would be impractical or difficult to switch between portrait and landscape orientation. With the revolving back, one simply turns the back which holds the film 90 degrees to switch between landscape and portrait, eliminating the need to turn the entire camera.

Another unique feature is the focusing. Whereas most medium format cameras feature in-lens helicoid focusing, the RB67 uses bellows which also allows for images to be in focus when closer to the subject.

Yet another feature is the ability to remove the film back at any time, including mid-roll. This lets the photographer either shoot film quicker by replacing a back with exposed film with a back with film that's yet to be shot or switch to another back for either a different format (6x4.5, 6x8) or a different type of film.