The mamiya 645DF+ Medium Format DSLR Camera Body is an open platform, digital
medium format camera that that can use a digital back with an image area much
larger than standard 35mm, leading to increased image quality. The camera is
compatible with multiple brands of digital backs, including Leaf, hasselblad,
and phase one, due to its open platform design. It also works with mamiya focal
plane lenses, schneider-Kreuznach leaf shutter lenses, mamiya 645 AFD lenses,
and hasselblad V lenses.