Urth M39 to Canon RF Lens Mount Adapter

The M39 to Canon RF Mount Adapter enables seamless, secure compatibility between your M39 lenses and Canon RF 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

M39 mount lenses
Camera Compatibility

Canon RF mount cameras
Adapter Type

Manual
Material

6061 Aluminium
Finish

Anti-reflective anodised, matte black 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 United Kingdom on orders £75.00 and over.

We ship with Royal Mail and other postal services as needed.

Standard shipping: 2-5 days

Express shipping: 1-3 days

Please allow an extra 2 days for regional areas.

M39 Lens to Canon RF Camera Adapter

Design Features

Aerospace-Grade Materials

Made from aerospace-grade aluminium to resist warping, impact and environmental wear — ready for demanding conditions.

Cross-System Adaptation

Machined to exacting tolerances, the adapter ensures a perfect fit — preserving performance and alignment across your gear.

Responsible Design

A Certified B Corp, Urth meets high standards of social and environmental responsibility, ensuring a 10x net-positive impact.

How to: 101

1/4

Set Camera to Manual

In settings, enable "Release Shutter Without Lens". Press the camera's 'MODE" button and select Manual (M) or Aperture Priority (AV).

2/4

Attach Lens to Adapter

Align the lens to the adapter, and rotate clockwise until locked.

3/4

Mount Adapter to Camera

Attach the adapter to your camera as you would a lens, rotating it clockwise until it clicks into place.

4/4

Remove from lens

Definitively unscrew lens from adapter by rotating counter-clockwise.

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average rating 5.0 out of 5

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Reviewed by Diederik W.

Verified Buyer

I recommend this product

Years Experience

10+

Style

Lifestyle
People
Studio
Outdoor

Rated 5 out of 5

Review posted

I can finally use my Jupiter on infinity!

I once bought an M39 adapter for my EF fitted camera and could only use my Jupiter (and other lenses) from a 50mm distance to the subject. Fun for insects but not much for portraits.

Now, with my Urth M39 to RF adapter, I witnessed the beauty that is the bokeh of the Jupiter for the first time on infinity focus and I’m stoked!!!

The Urth products look slick, feel well and work even better. And the fact that they help you help the planet is a very nice big bonus to that!

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Reviewed by Frank H.

Verified Buyer

I recommend this product

Years Experience

10+

Style

Documentary
Studio
Fashion
Video
Travel

Rated 5 out of 5

Review posted

Very pleased

Solid, well-made, works as intended and was shipped quickly. Thank you!

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M39 Lens to Canon RF Camera Adapter

Manual cross-system lens adapter

M39 Lens to Canon RF Camera Adapter