This Pro Lens Adapter from Fotodiox enables the use of your Mamiya 645 lenses on Pentax K mount SLR and 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 to K 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. Do you have to apply a crop factor with this in place? For instance, does the 80mm becomes a 135mm?

A: No. The focal length of any lens never changes. So enjoy the quality of Mamiya glass, the product is well made and won't ruin lens mounts. You won't notice any difference when you shoot (except sometimes a heavier lens). So looking through an 80mm Nikon lens on a Nikon SLR/DSLR body is the same as an 80mm Mamiya lens or any other 80mm lens.What changes is the area the lens will cover. Since it covers an area 6cm X 4.5cm, and you are using it on a 'smaller' format, it more than covers 35mm film (3.5 cm X 2.4 cm) or Nikon's FX sensor (3.6 cm X 2.4 cm) or Nikon's DX sensor (2.4 cm X 1.6 cm).You would have trouble if you tried to use it on a 'larger' format e.g. 4 X 5 film would give huge vignetting (but a nice 3 X 3 crop). If you do the maths, the lens has a 'circle' of (at least) diameter 7.5 cm to 8.5 cm to cover 6 cm X 4.5 cm film.

Q: 2. 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: 3. Would this Adopter fit on Mamiya 645 afd to Canon 7d?

A: Canon 7D has the same mount with 5D. It fits Mamiya 645 Sekkor C lenses on 5D so it would do it on 7D as well.

Q: 4. 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: 5. is this mount for mamiya sekor c lenses ?

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

Q: 6. May I know is the Tripod mount removable for this adapter?

A: The tripod foot on the FotodioX Mamiya 645 Lens to Fujifilm G-Mount Camera Pro Lens Mount Adapter cannot be removed.

Q: 7. Does it work with the newer autofocus lenses used with the DF +? Does the auto Focus functions work anywhere lenses?

A: This adapter is not suitable for newer Mamiya 645 lenses with autofocus which would work with the DF+.

Q: 8. 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.

Q: 9. Hello!! This article helps me to ride my Hasselblad camera lens in my Mamiya 645DF +?

A: Yes, the adapter is compatible with Hasselblad V mount lenses and Mamiya 645 mount cameras.

Q: 10. I can't fit my 45mm 1:2.8 Mamiya Manual Focus lens on this adapter, though everything I've read says the lens should be compatible. Has anyone else experienced this issue? it fits into the adapter (aka sits in the grooves) but it will not click and lock.

A: If the FotodioX Pro Lens Mount Adapter for Mamiya 645, does not work with the 45mm Mamiya Manual Focus lens for the 645, that means it is defective, and because it has a 2 year warranty, it can be sent back to Fotodiox to get a working adapter.