The Mamiya RZ67 is a professional medium format single-lens reflex system camera manufactured by Mamiya. There are three successive models: the RZ67 Professional (first model released in 1982), RZ67 Professional II (released in 1993) and RZ67 Professional IID (released in 2004). RZ67 is a modular camera system, meaning lenses, viewfinders, ground glass, film winders and film backs are all interchangeable. It is primarily designed for studio use, but can also be used in the field. The RZ67 Sekor lenses have built-in electronic leaf shutters which are cocked and triggered from the body. Focusing is performed with a bellows on the body instead of the lenses.
The camera accepts 6×7, 6×6 and 6×4.5, 120 and 220 film magazines and Polaroid as well as Quadra 72 4×5 sheet film backs. Mamiya RZ67 backs are also supported via the G-Adapter. The film speed is set on each RZ back via a dial. There are two versions of the 6×7 and 6×4.5 backs; the model II versions have a second film counter to always show the film count on the top. The RZ67 operates on one 6 V silver oxide 4SR44 battery, or 6 V 4LR44 alkaline battery. It can be used in emergency mode fully mechanically with a fixed 1/400 sec shutter speed. Multiple exposures are possible in the M-mode. Mirror flip up is supported. The body has one standard flash hot shoe on its left side, one plug for a standard remote shutter cable release, and a socket for an electronic shutter trigger. The RZ67 measures 104 mm (W) × 133.5 mm (H) × 211.5 mm (L) with the 110mm f/2.8 lens, and weighs approximately 2.4 kg (5.29 lbs). The flange distance is 105 mm.