Whether you're shooting digitally or on film, Fotodiox offers the world's largest selection of lens adapters. Mix camera/lens platforms or reinvigorate vintage glass; Fotodiox has hundreds of ways to mount lenses onto your DSLR or SLR camera. Our adapters deliver infinity focus, manual aperture control, and a sturdy build for lasting quality. Our Mamiya 645 adapter is only designed to work with Mamiya 645 Manual focus lenses. Not compatible with Mamiya 645 autofocus lenses as well as phase one XF Pentax K (pike) mount SLR Cameras - Popular models include:k-7, K-x, K-R, K-5, K-01, K-30, K-5II, K-5IIs, k-500, K-50, K-3, k-s1note:This is a manual adapter, so lens functions that rely on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc.) will be disrupted. Set your exposure manually or meter using your camera's Aperture Priority (stop-down) mode. If your lens does not have a manual aperture control ring, it will stop down to its smallest f/stop by default. All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.