This Pro Lens Adapter from Fotodiox enables the use of your Mamiya 645 lenses on Canon EF-mount DSLR cameras. It features a durable brass construction with stainless steel finish, a leaf spring ensures a secure connection between the lens and adapter, and its design also maintains infinity focus.

Mamiya 645 Lens to EF-Mount DSLR    Maintains Infinity Focus    Leaf Spring Mount Design    Brass with Stainless Steel Finish

This manual adapter does not maintain automatic lens control between the camera and lens; aperture priority or manual shooting modes should be used, as well as stop-down metering for exposure control.

Related Questions and Answers

Q: 1. How does the lock button work from adapter to lens? When I mount the lens to adapter I find by focusing the lens it can detach from mount.

A: I don't know. I have the same problem.

Q: 2. Wil this work on the Canon 6D? If not is there any adapter which will allow me to use Mamiya 645 lenses on the Canon 6D?

A: Yes, this adapter would work on the Canon 6D as well as other Canon EOS digital or film SLR cameras.

Q: 3. will this work with canon 5d mark 3? And will this work with Mamiya 645 AF lenses?

A: I use it to attach my Mamiya 645 lenses to my Canon 6D, the baby-brother of the 5DM3, and it works fine. It's not as perfect as having it hooked up to your Mamiya, but it never will be. But you will unlock the greatness of a medium-frame format lens onto a full-frame 35mm equal and the results are like nothing you can get from a Canon lens. I'm not saying superior, but in many ways, they're up there with the traditional L lenses, and if you bought the Mamiya lenses used, you probably didn't spend the L prices. Good luck.

Q: 4. Will this adapter make a 50mm Mamiya 645 lens act like a 50mm lens on my full-frame Canon DSLR, i.e. is it a focal reducer?

A: The FotodioX Pro Lens Mount Adapter for Mamiya 645 Lens to Canon EF-Mount Camera is not a focal lens reducer and has no built-in optics. If you are using a lens designed for the Mamiya 645 film camera, as there are no conversion optics inside the above lens mount adapter, a 50mm 645 medium format lens would be the rough equivalent of a 31mm lens used on the full-frame 35mm sensor.

Q: 5. Does B&H sell this hood in picture nr 5 or do you know which hood this is to put on a mamiya lens ?

A: We don't have the specific one in the photo, the closest option I could find is this one: https://bhpho.to/3zgco3L As long as your lens has a 77mm filter diameter this should work.

Q: 6. is this mount for mamiya sekor c lenses ?

A: This adapter is for Mamiya Sekor lenses with a 645 mount.

Q: 7. Using this adapter on the GFX and mating a Mamiya 645 35mm N lens, what would be the net focal length of this combination ? Would the net result be similar to a 21mm lens on a 35mm body?

A: No, it won't be nearly that wide. On the GFX 35mm should give you a 28mm field of view (if we are talking full frame equivalence)

Q: 8. Will Mamiya 645 Lens to Hasselblad XCD adapter BH #FOM645XCDPRO trigger the leaf shutter in Mamiya 645 manual lens?

A: The FotodioX Mamiya 645 Lens to Hasselblad XCD-Mount Camera Adapter will not trigger the leaf shutter in the lens. Instead, you will use the camera's focal-plane shutter.

Q: 9. Would this adapter allow me to use 645 lenses on a F2AS body? I am not sure about how the lenses would index, if at all.

A: Si puedes utilizar lentes de Mamiya 645 en cuerpos Nikon, el resultado es muy bueno, pero solo trabajan en modo manual, yo los utilizo en mi Nikon D 810 y estoy muy feliz.

Q: 10. Can the Fotodiox Pro Lens Mount be used on a Mamiya m645 1000s specifically. I need an answer on the 1000s, not generally M645 mount, because the self timer may get in the way with not enough clearance?

A: Yes you can use this lens adapter with the 1000s. it will not be blocked by the self timer.