The M42 to Canon EF/EF-S Mount Adapter enables seamless, secure compatibility between your M42 lenses and Canon EF/EF-S mount cameras, without compromising optical performance or manual control.
- Manual cross-system compatibility
- Precision-fit machined threads
- Durable, warp-resistant aluminium
- Anti-reflective matte interior
- No optical interference
- Lifetime warranty
Lens Compatibility
M42 mount lenses
Camera Compatibility
Canon EF/EF-S mount cameras
Adapter Type
Manual
Material
6061 Aluminium
Finish
Anti-reflective anodised interior
Infinity Focus
Supported
Warranty
Lifetime warranty
To find out more information about the impact of this Urth product, view our Life Cycle Analysis (LCA) report here
Free standard shipping within the continental US for orders $100 and over.
We deliver with USPS, UPS and DHL express for faster and safer delivery.
Standard shipping:
US: 3-7 days.
Rest of World: 8-18 days.
Express shipping:
US: 2-4 days.
Please allow an extra 2 days for regional areas.
Made from aerospace-grade aluminium to resist warping, impact and environmental wear — ready for demanding conditions.
Machined to exacting tolerances, the adapter ensures a perfect fit — preserving performance and alignment across your gear.
A Certified B Corp, Urth meets high standards of social and environmental responsibility, ensuring a 10x net-positive impact.
1/3
Set mode to Manual (M) or Aperture Priority (A). Set lens to Manual Focus (MF) if there's an AF/MF switch.
2/3
Align the lens to the adapter, and rotate clockwise until locked.
3/3
Attach the adapter to your camera as you would a lens, rotating it clockwise until it clicks into place.
Tested the adapter w/Pentax Super-Takumar 50mm f1.4 with bot full frame and APSC Canon bodies and the results were very good. Manual focusing is on-point, aperture is fully selectable, and the fit with the lens and the camera body are snug and solid.
Excellent product and prompt shipping - will use Urth again.
By far it's the best one I've used, solid build quality would be nice to see a black version as well to blend in with the camera body's and lenses and maybe add weather sealing on both side as well for the lenses and body
I adapted my helios 44-2 to my Canon Elan II E and it was perfect
The fit to my digital bodies was perfect! The screw mount tight with no light leaks. No worries about loose fits here... I was able to determine how clean and image perfect my Takumar lenses were before using on my Pentax K1000 with Ilford film. Clean once, shoot once!
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