RainbowImaging Hassel Hasselblad lens to Mamiya 645 M645 645E 645J Camera Adapter This adapter allows you to use Hassel Hasselblad Lens on Mamiya 645 cameras. With Precise Design, allows more Smooth Operation!! Allow focus to Infinity Pls note Autofocus (AF) is not available; and the distance scale on the lens maybe different from the actual focus distance.