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 Mamiya RB 67 Professional S is a highly regarded medium format camera from 1970. It used to be very popular with fashion and studio photographers thanks to its great image quality. The system comprise of a camera body and interchangeable viewfinders, film backs, and lenses.