Mamiya's flagship 6x6 TLR — interchangeable-lens C330f, paired leaf-shutter lenses, bellows focus, 1972.
The Mamiya C330f is a medium-format twin-lens reflex from Mamiya, an early-1970s revision of the flagship C330 in the interchangeable-lens C-series. It refined the C330 with detail changes to controls and finish while keeping the professional-oriented interchangeable paired-lens system.
It is a twin-lens reflex shooting 6x6cm square frames on 120 roll film, twelve per roll, and can also take 220 film. It takes interchangeable paired lenses on the Mamiya C bayonet, with taking and viewing lenses changed together and each lens carrying its own leaf shutter. Focusing is by a bellows moving the lens board for close focusing, and composition is through a waist-level finder on the ground-glass screen, with interchangeable finders available.
The C-series is the interchangeable-lens professional TLR, and the C330f suits portrait, landscape, studio and general medium-format work where lens changes and close focusing matter. It keeps the crank advance and parallax features of the C330 line. The camera is heavy and large, and each additional focal length is a bulky paired unit to carry.
When buying a used C330f, check the taking and viewing lenses separately for haze, fungus and separation, and confirm the lens-lock and mount seat the paired lens securely. Fully extend the bellows and inspect for pinholes and light leaks. Test each lens's leaf shutter and aperture, verify the crank film-wind and counter, and inspect the ground glass for brightness and the focus mechanism for smooth travel.