This Fotodiox Pro Lens Adapter allows you to attach M42 lenses to your Canon RF-mount mirrorless camera body. This adapter has a fully manual design, which does not relay electronic communication between the camera and lens, and maintains infinity focus along with the ability to use aperture priority metering. The ring's durable all-metal design also features chrome-plated brass lens and camera mounts to ensure a precise, no-play fit.

M42 Lens to Canon RF    Maintains Infinity Focus    Chrome-Plated Brass Mounts

Related Questions and Answers

Q: 1. Will this allow focus to infinity? Thanks!

A: Yes it will. I'm using an old Osawa 35-105 Macro MC lens on a Canon XS and it works fine. Bear in mind, the lens will be a completely manual operation,only the camera metering will work. Best results will be with camera set to Manual. The adapter is a small price to pay to have some fun with an old favorite lens that was otherwise used as a paper weight.Good Luck!

Q: 2. Does this get semi-permanently attached to the lense or can you easily switch between lenses?

A: It is not a permanent attachment. You can share it among different lenses easily.

Q: 3. I have a Canon 90d and i bought 7artisans 32mm and 7artisans 12mm, what adapter or metabone can I use for them to fit my canon 90d?

A: Unfortunately, there are no adapters to allow the 7Artisans lenses for mirrorless cameras to fit on the Canon EOS 90D.

Q: 4. I am making a set of pentax m42 lenses to shoot a movie, and am going to buy an adaptor for all of them, is there a screw to tighten the adaptor in place after it is screwed on the lens?

A: No, but not necessary, the adapter is secure once attached.

Q: 5. Can I use this adapter to mount it on my Rokinon 12mm Canon EOS M, to my Canon EOS T5?

A: You can't. The M42 mount (screw mount) is an old mount made in the 30s. What you are looking for is more for modern SLR/DSLR cameras.

Q: 6. Will this adaptor work with a mamiya-sekor 55mm f1.4?

A: Yes. It will allow connection of the lens. Functionality will be limited to manual focusing and depending on the camera, manual or aperture priority exposure only with no information or meta data transfer.

Q: 7. Does this get semi-permanently attached to the lense or can you easily switch between lenses?

A: easily switched.

Q: 8. Will this work properly with infinity focus with the mirrorless Eos R?

A: Yes.

Q: 9. Will this allow me to easily connect a Helios 44-2 lens to my Canon 5DIV? I fully understand that focus etc. will be manual. Thanks.

A: yes, it will work.

Q: 10. Would this be the adapter to mount Polaroid lenses to a Canon 90d?

A: If the Polaroid lens has an M42 screw mount, then yes it will fit.