The Kowa Six is a medium format single-lens reflex (SLR) camera produced by Kowa in the 1960s, designed for 6x6 cm exposures on 120 roll film. Unlike many competing models such as the Bronica S2 and Hasselblad, the Kowa Six loads film directly into the body rather than into detachable magazines; the film routes through an L-shaped path inside the camera. The original Kowa Six was later improved as the Kowa Six MM, which added features such as a mirror lock and multiple exposure capability, and then evolved into the Super 66 model with interchangeable film magazines. The system included a range of Kowa lenses and several viewfinder, focusing screen, and accessory options. While the Kowa Six is known for its robust construction and high-quality optics, the mirror movement can cause the focusing ring to shift if not held securely during exposure. Careful operation is recommended to avoid mechanical jams, which can be reset by removing the film and reopening the camera.