Not to be confused with Canon R lens mount or Contax RF-mount.
Canon RF mount
Canon EOS R5 with Canon RF mount visible
Type
bayonet
Inner diameter
54 mm[1]
Flange
20 mm[2]
The Canon RF lens mount is an interchangeable-lens mount developed by Canon for its full-frame mirrorless interchangeable-lens cameras, and featured first by the EOS R, followed by the EOS RP.[3][4][5] The RF mount was announced in September 2018.[6][7] In May 2022, Canon announced APS-C EOS R cameras (the EOS R10 and EOS R7) and RF-S lenses designed for these cameras.[8]
The RF mount allows for the use of Canon EF and EF-S mount lenses using one of three Canon-made lens adapters. When an RF-S or EF-S lens is attached, however, the camera will only function as an APS-C camera, not a full-frame camera.
^Sparrow, Mark. "Canon Launches New EOS R Mirrorless DSLR Camera Hot On The Heels Of Nikon's Z Series". Forbes. Retrieved 2018-09-05.
^"Canon launches new full frame camera and lens line-up as part of the revolutionary, new EOS R system - Canon Press Centre". www.canon.co.uk. 5 September 2018. Retrieved 2018-09-05.
^"Everything you need to know about Canon's EOS R mirrorless camera". Engadget. Retrieved 2018-09-05.
^"Canon EOS R full-frame mirrorless and more expected Sept. 5, reportedly". CNET. 31 August 2018. Retrieved 2018-09-05.
^"Canon unveils new full-frame mirrorless camera, the EOS R". TechRadar. Retrieved 2018-09-05.
^"Canon's full-frame mirrorless EOS R is now official". CNET. 5 September 2018. Retrieved 2018-09-05.
^"Four RF-mount lenses kick off Canon's new full-frame mirrorless system". Digital Photography Review. Retrieved 2018-09-05.
^"Canon's EOS R(evolution) Expands to APS-C with Its Two New Mirrorless Cameras and New RF-S Lenses". Canon. Retrieved 2022-08-14.
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