Make use of select M42-mount lenses on your Canon EF-or EF-S-mount camera with this M42 Lens to Canon EOS Adapter - FotodioX Pro Mountfrom FotodioX. Precision-crafted out of metal and featuring chrome-plated brass mounts, the adapter provides a secure and solid camera-to-lens connection with no play, gap, or wiggling between the elements. Additionally, it supports focusing to infinity.

M42-Mount Lens to Canon EOS Camera    Supports Infinity Focus    All-Metal Construction    Chrome-Plated Brass Mounts    No Play, Gap, or Wiggling

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 adapter LOCK on to the camera? I bought a cheaper one, and it does NOT lock!

A: Yes it does lock

Q: 2. 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.

Q: 3. What does type 1 and type 2 mean in the other versions of this adapter? are there different mounts of M42?

A: The Type 1 adapts an M42-mount lens without an aperture pin, or with a non-fully depressible aperture pin and tabs along its screw-mount. The Type 2 adapts an M42-mount lens with a fully depressible aperture pin.

Q: 4. 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: 5. I have the 90D and the 5D Mark iv, 2 different censors. Will it work the same for both? I'm assuming the 90D would include a crop?

A: That is correct.

Q: 6. Is this the Type 2 of the adapter?, for M42-mount lens with a fully depressible aperture pin? Because it doesn't say in the title or in the photos.

A: It is type 1. If you need type 2, they make this version: https://bhpho.to/352szF6

Q: 7. Will this work properly with infinity focus with the mirrorless Eos R?

A: Yes.

Q: 8. can my nikon d750 still give me focus confirmation with this adapter?

A: The short answer is no, the adapter will work optically, but there isn't any autofocus at all. On the auto focus lenses you use with your D750, you should notice electrical contacts that are absent on the lens you are trying to use with this adaptor. With no electrical connection to the lens auto-focus is not possible. That being said, the adaptor, along with the corrective lens in the adaptor will allow manual focus. I used this adaptor with a 50mm f/1.4 Takumar lens that came with my Asahi Spotmatic, and it's a terrific lens, so if your M42 mount lens is a good one, this adaptor will allow you to use it.

Q: 9. Does this get semi-permanently attached to the lense or can you easily switch between lenses?

A: easily switched.

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.