Make the most of your existing collection of M42-mount lenses with this M42 Lens to Canon EF/EF-S-Mount Camera Lens Adapter from Vello. This durable adapter will allow you these lenses to be mounted to a Canon EF/EF-S-mount camera. Precise construction makes it easy to attach an adapted lens to a camera body and keep it secure during use. Infinity focus is guaranteed, ensuring proper functionality when shooting at long distances.

The adapter is made from a durable zinc alloy for long life. Although the lens will fit physically, autofocus, automatic diaphragm (AE metering), and other functions dependent on communication between camera body and lens will be disrupted by the lens adapter. Focus and exposure will need to be set manually, or metered in aperture priority (stop-down) mode.

M42 to Canon EF/EF-S Body    Achieves Infinity Focus    Zinc Alloy Construction

Enables the use of M42-mount lenses on Canon EF/EF-S camera bodies, meaning an existing collection of lenses can be used on later generation DSLRs and mirroless cameras.

Precision machining securely holds the lens in place without any wobble.

Infinity focus is guaranteed by placing the lens at the correct distance from the sensor, doesn't prevent shooting distant subjects.

Made from a durable zinc alloy, this adapter will withstand many uses for long life.

Related Questions and Answers

Q: 1. Would this work in adapting an m42 lens to a Metabones Speed Booster?

A: The Vello M42 Lens to Canon EF/EF-S-Mount Camera Lens Adapter would work in adapting an M42 lens to a Metabones speed booster so long as the speed booster is an EF mount.

Q: 2. I recently acquired a 135mm Cavalier f/2.8 lens. I don't know much about it. It is a screw mount but i'm not sure what size. Does anyone have any advice?

A: According to several eBay listings, the Cavalier 135mm f/2.8 uses an M42 (Pentax) screw mount. So it should be compatible with this adapter's receiver.

Q: 3. Does this adapter have a grub screw to semi-permanently attach it to a lens?

A: Yes, the Vello M42 Lens to Canon EF/EF-S-Mount Camera Lens Adapter has 3 screws to adjust the lens position. You will need a 2mm flathead screwdriver.

Q: 4. 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: 5. Will this work properly with infinity focus with the mirrorless Eos R?

A: Yes.

Q: 6. Is this adapter slim? I would like to adapt a Peleng 8mm fisheye to a Canon 7D to reduce vignetting. There is a Canon EF Mount version but with the cost of more vignetting. Any help on this would be appreciated. Thank you.

A: This adapter is very slim and I haven't seen any vignetting on my 5DkmIV. I'd watch out for any flange that might stick out from the back of the lens - using Pentax M42 mount lenses, they have a flange for actuating the shutter and my mirror smacks it, which is not good at all. Just take a loot at the lens and if something stick out of the mounting side, I'd get a different adapter that gives you more room.

Q: 7. 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: 8. I bought 3 of these based on the reviews here and they are all unacceptably loose once tightened. They actually wiggle in the connection between the VELLO to Metabones adapter. (I have no issues with regular EF Canon lenses). Does anyone have the same problem?

A: Problem is using 2 adaptors to canon body I use this with old super takumar 85 f1.8 great portrait combo very tight precise focus via live view.

Q: 9. 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: 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.