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Canon Mount Adapter EF-EOS R

Model #378461
  • $150.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
EX+ Excellent Plus
With Caps, Case
$150.00
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Canon has rolled out some very impressive lenses in the EOS RF lens mount but full frame Canon mirrorless body owners can also make good use of the venerable line-up of EF and EF-S lenses thanks to the Canon Mount Adapter EF-EOS R. Compatible with everything from monster telephotos to ultrawide tilt-shift tools (and even APS-C coverage EF-S optics) the Canon Mount Adapter EF-EOS R expands options while mainting full compatibility and functionality. It allows entry to Canon's mirrorless future while still being able to leverage favorite lenses and the great value offered by the extensive EF line of glass.

The Canon Mount Adapter EF-EOS R enables virtually seamless compatibility between Canon's EF and EF-S lenses and the EOS R full-frame mirrorless system. Designed with precision and durability, this adapter ensures full communication between camera and lens, including autofocus, image stabilization, and lens metadata transmission.

This lightweight, all-metal adapter is ideal for Canon users transitioning to mirrorless while retaining access to their existing DSLR lens collection. It mounts securely without optical compromise and maintains the native performance of the lens.

A version with an extra control ring is also available.

Key Features:

  • Enables use of Canon EF and EF-S lenses on EOS RF Mount/R-series cameras
  • Retains full electronic communication and functionality
  • Compatible with autofocus, IS, and lens metadata transfer
  • No optical elements added-preserves original lens quality
  • Metal bayonet construction for rugged durability
  • Weather-resistant design for professional use
  • Compact and lightweight for travel and field use
  • Secure fit with no lens wobble or play
  • Ideal for adapting telephoto, macro, and specialty EF lenses
  • Perfect tool for DSLR-to-mirrorless transition or

FAQs:

Will EF-S lenses work on a full-frame EOS R?

Yes, but the camera will automatically switch to APS-C crop mode.

Does this adapter affect image quality?

No, since it includes no optical elements, your lens performs exactly as designed.

Can I use this adapter on R5 and R6 models?

Yes, the EF-EOS R adapter is compatible with all Canon EOS R-series bodies.

Can I use this adapter with EF-M mount products

No, Canon's EF-M mount is distinct and different from EF and EF-S mount. Canon has not to date made a EF-M to RF/RF-S adapter.

Brand Name Canon
Lens Mount Canon EF, Canon EF-S, Canon EOS RF