This FotodioX Pro Lens Mount Adapter allows a Mamiya RB67 or RZ67-mount lens to be used on a Canon EF or EF-S mount camera. It is designed to support focusing to infinity, is constructed from brass as well as aluminum-alloy, and utilizes a brass lens mounting ring to provide a durable, yet lightweight camera-to-lens connection.

A Generation v10 chip built into the adapter enables focus confirmation within a Canon EF or EF-S mount camera when used with a Mamiya RB67 or RZ67-mount lens. This feature allows focus to be quickly and accurately achieved through a compatible camera's viewfinder or live view feature.

After being placed on the front of the adapter, aperture control on a compatible lens would continue to be used. For focus control, this Pro Lens Mount Adapter features a built-in helicoid that extends and retracts a compatible lens in a manner similar to a Mamiya RB67 or RZ67 camera's focusing rack.

To help prevent stress on the camera mount if the supported camera and lens combination is to be placed on a tripod, this Pro Lens Mount Adapter includes an integrated, Arca-type tripod foot.

Mamiya RB67 or RZ67 Lens to EF/EF-S Body    Enables In-Camera Focus Confirmation    Supports Focusing to Infinity    Brass and Aluminum-Alloy Construction    Brass Lens Mounting Ring    Helicoid for Focus Control    Integrated, Arca-Type Tripod Foot

• Allows a Mamiya RB67 or RZ67-mount lens to be used on a Canon EF or EF-S mount camera
• Built-in Generation v10 chip enables in-camera focus confirmation
• Attached lens can focus to infinity
• Constructed from brass and aluminum-alloy
• Utilizes a brass lens mounting ring to provide a lightweight camera-to-lens connection with enhanced durability
• Integrated helicoid mechanism provides lens focus control
• Integrated tripod foot is compatible with Arca-type quick release clamps

Related Questions and Answers

Q: 1. Do you lose a stop of light with this adapter like you would a telephoto converter?

A: It has a slight loss of two-thirds of a stop.

Q: 2. Would the auto focus work when used w Canon 6D Mark II and the Sony Planar T* 50mm f/1.4 ZA SSM Lens?

A: I'm sorry, no, this is a manual focus converter only. The focus confirmation chip is for when manually focusing, a light comes on and tells you when its in focus.

Q: 3. I have a Minolta Maxxum 5 and 5i will this adapter work on the lenses so I can put them on my Canon m50 mark2 a ef-m mount camra

A: While the FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Sony A-Mount Lens to Canon EF or EF-S Mount Camera will work with your lenses from the Minolta Maxxum 5, it will not work with your camera. The Canon EOS M50 Mark II Mirrorless Camera uses the Canon EF-M mount which is different from the EF-mount. The only adapter we have currently for this combination is the Novoflex Adapter for Sony A/Minolta Mount Lens To Canon EOS M Cameras, BH #NOEOSMMINAF (https://bhpho.to/407xsbe).

Q: 4. Hi, will this work with an Auto Miranda 105mm 2.8 for SENSOREX lens?

A: The FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Miranda-Mount Lens to Canon EF or EF-S Mount Camera is compatible with any Miranda mount lens.

Q: 5. Wil Canon FD Lenses (Breech-lock) FD 70-210mm F4, FD 50mm F1.4, FD 28mm F 2.8 work correctly with this adapter?

A: Yes, the FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Canon FD-Mount Lens to Canon EF or EF-S Mount Camera will support Canon FD lenses with breech-lock.

Q: 6. Will this work with Canon FD N lens mounts as well as FD?

A: There have been no reports on the Canon FD New mount being used with this adapter.

Q: 7. A mount adapter EF EOS adapter is required?

A: If you are using Nikon F-Mount Lenses to a Canon EF or EF-S Mount Camera, then yes.

Q: 8. will this adapter work with Minolta maxxum 700si a mount lenses?

A: Yes. The FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Sony A-Mount Lens to Canon EF or EF-S Mount Camera, B&H # FOSNYAEPFC10, will allow you to use a Minolta MAXXUM lens or a Sony A-mount lens on a Canon camera that uses the EF or EF-S lens mount.

Q: 9. Does this have to be programmed for the lens it is being used on?

A: No this does not have to be programmed for the lenses it is going to be used with.

Q: 10. Will this allow for aperature change in camera? using this for a bmpcc 4k to canon adapter.

A: It will not. This does not allow you to control the aperture.