Make use of select M42-mount lenses on your Canon EF- or EF-S-mount camera with this M42 to Canon EOS Mount Adapter - FotodioXfrom FotodioX. Precision-crafted out of hardened anodized aluminum, the adapter provides a secure and solid camera-to-lens connection. Additionally, it supports focusing to infinity.

M42-Mount Lens to Canon EOS Camera    Supports Infinity Focus    Anodized-Aluminum Construction

If your M42-mount lens has no aperture pin, tabs, or levers; or if it has an aperture pin that does not fully depress (small tabs stick out), it is considered a type-1 lens and this V1 lens mount adapter is compatible with it.

However, if the aperture pin of your M42-mount lens depresses all the way down, your lens is considered type 2 and is compatible with V2 adapters (available separately).

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

A: easily switched.

Q: 5. Will my Super Takumar 50mm f/1.4 clear the mirror on a Canon 1Ds II body? This is an early version lens with the lightly protruding rear lens element.

A: According to Fotodiox, this FotodioX Pro Lens Mount Adapter for M42 Lens to Canon EF-Mount Camera is compatible with the Canon 1DS II body.

Q: 6. Will this adapter work on a full frame Sony Camera ?

A: This adapter will work from M42 mount to Sony E mount camera bodies yes.

Q: 7. Will this adaptor allow the lenses to be mounted to Nikon DX bodies as well?

A: Yes, the adaptor allows the screw mount Lens to mate with the Nikon DX body without a problem, don't forget the camera will only operate in manual mode.

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

A: Yes.

Q: 9. 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: 10. Will this adapter work with Metabones ultra 0.71 speed booster EF to BMPCC 4k (BH #MESPEFM43BT8)?

A: This adapter would allow for the use of M42 screw mount lenses to fit on a Canon EOS camera with an EF mount. If you're looking to use the Canon EF lenses on a Black Magic Pocket Cinema Camera 4K with a Micro 4/3 mount, then the Metabones T Speed Booster ULTRA 0.71x Adapter for Canon EF Lens to BMPCC 4K Camera, B&H # MESPEFM43BT8 would be used on its own with no other adapters.