Canon RF lens mount

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]

Not to be confused with Canon R lens mount or Contax RF-mount.
Canon RF mount
Canon EOS R5 with Canon RF mount visible
Typebayonet
Inner diameter54 mm[1]
Flange20 mm[2]

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 EF-S lens is attached, however, the camera will only function as an APS-C camera, not a full-frame camera.

Details

Canon full-frame cameras have used the EF lens mount since 1987. In comparison with that mount, the RF mount's inner diameter is the same at 54 mm.[1] The RF mount's flange focal distance at 20 mm is much shorter than that of the Canon EF and EF-S mounts at 44 mm. The EF-M mount has a flange focal distance of 18 mm.

An EF-EOS R lens adapter enables Canon EF, EF-S, TS-E and MP-E lenses to be used on cameras that have the RF mount.[8] The three adapters have differing features:[9]

  • Mount Adapter EF-EOS R
  • Control Ring Mount Adapter EF-EOS R – the Mount Adapter EF-EOS R with a lens control ring
  • Drop-In Filter Mount Adapter EF-EOS R – the Mount Adapter EF-EOS R with the ability to use drop-in filters, either a variable neutral density (V-ND) filter or circular polarising (C-PL) filter, and a clear (CL) filter, to be released in 2019

The EOS R is a 30 megapixel (6720 × 4480) full-frame camera. If an EF-EOS R Mount Adapter is used with it to mount an EF-S lens, the camera will function as an 11.6 megapixel (4176 × 2784) crop camera.

Lenses
RF50mm F1.2 L USM without lens hood

At the time Canon announced its first R-series body, it announced four new RF-mount lenses:[10]

  • RF24–105mm F4 L IS USM
  • RF28–70mm F2 L USM
  • RF50mm F1.2 L USM
  • RF35mm F1.8 MACRO IS STM — 0.5× maximum magnification.[11]

In conjunction with the February 2019 announcement of the entry-level full-frame EOS RP, Canon announced that six additional lenses would be released by the end of that year, although it did not indicate release dates for any of them:[12]

  • RF85mm F1.2 L USM
  • RF85mm F1.2 L USM DS — Same as the above, except includes "defocus smoothing" technology intended to improve bokeh. According to Canon, the effect is similar to that of an apodization filter, but achieved through special lens coatings instead of a filter.[13]
  • RF15–35mm F2.8 L IS USM
  • RF24–70mm F2.8 L IS USM
  • RF24–240mm F4–6.3 IS USM
  • RF70–200mm F2.8 L IS USM

In 2020, Canon has introduced 7 new RF mount lenses:

  • RF24–105mm F4–7.1 IS STM
  • RF600mm F11 IS STM — fixed-aperture lens
  • RF800mm F11 IS STM — fixed-aperture lens
  • RF85mm F2 MACRO IS STM — 0.5× maximum magnification
  • RF50mm F1.8 STM
  • RF70–200mm F4 L IS USM
  • RF100–500mm F4.5–7.1 L IS USM

In 2021, Canon has introduced 7 new RF mount lenses:

  • RF100mm F2.8 L MACRO IS USM - 1.4× maximum magnification
  • RF400mm F2.8 L IS USM
  • RF600mm F4 L IS USM
  • RF14–35mm F4 L IS USM
  • RF16mm F2.8 STM
  • RF100–400mm F5.6–8 IS USM
  • RF5.2mm F2.8 L Dual Fisheye

RF-mount lenses are not compatible with EF, EF-S or EF-M mount camera bodies.

Compatibility

The cameras that can use the RF mount are:

Canon RF-mount lenses
Focal length Aperture range Introduced Macro USM STM IS L-Series DO Filter
size		 Lens
diameter		 Lens
length		 Weight Hood Source
RF 5.2mm F2.8 L Dual Fisheye Lens f/2.8 2021-10-06 No No No No Yes No Built-in 121.1 × 83.6 mm 053.5 mm 0350 g - [14]
RF 14-35mm F4 L IS USM f/4 2021-06-29 No Yes No Yes Yes No 77 mm 084.1 mm 099.8 mm 0540 g EW-83P [15]
RF 15-35mm F2.8 L IS USM f/2.8 2019-08-28 No Yes No Yes Yes No 82 mm 088.5 mm 126.8 mm 0840 g EW-88F [16]
RF 16mm F2.8 STM f/2.8 2021-09-14 No No Yes No No No 43 mm 68.5 mm 40.6 mm 165 g EW-65C [17]
RF 24-70mm F2.8 L IS USM f/2.8 2019-08-28 No Yes No Yes Yes No 82 mm 088.5 mm 125.7 mm 0900 g EW-88E [16]
RF 24-105mm F4 L IS USM f/4 2018-09-05 No Yes No Yes Yes No 77 mm 083.5 mm 107.3 mm 0700 g EW-83N [18]
RF 24-105mm F4-7.1 IS STM f/4–7.1 2020-02-13 No No Yes Yes No No 67 mm 076.6 mm 088.8 mm 0395 g EW-73D [19]
RF 24-240mm F4-6.3 IS USM f/4–6.3 2019-07-09 No Yes No Yes No No 72 mm 080.4 mm 122.5 mm 0750 g EW-78F [20][21]
RF 28-70mm F2 L USM f/2 2018-09-05 No Yes No No Yes No 95 mm 103.8 mm 139.8 mm 1,430 g EW-103 [22]
RF 35mm F1.8 Macro IS STM f/1.8 2018-09-05 Yes No Yes Yes No No 52 mm 074.4 mm 062.8 mm 0305 g EW-52 [23]
RF 50mm F1.2 L USM f/1.2 2018-09-05 No Yes No No Yes No 77 mm 089.8 mm 0108 mm 0950 g ES-83 [24]
RF 50mm F1.8 STM f/1.8 2020-11-04 No No Yes No No No 43 mm 069.2 mm 040.5 mm 0160 g ES-65B [25]
RF 70-200mm F2.8 L IS USM f/2.8 2019-10-24 No Yes No Yes Yes No 77 mm 089.9 mm 146 mm 1,070 g ET-83F (WIII) [26]
RF 70-200mm F4 L IS USM f/4 2020-11-04 No Yes No Yes Yes No 77 mm 083.5 mm 119 mm 0695 g ET-83G (WIII) [25]
RF 85mm F1.2 L USM f/1.2 2019-05-08 No Yes No No Yes No 82 mm 103.2 mm 117.3 mm 1,195 g ET-89 [27]
RF 85mm F1.2 L USM DS f/1.2 2019-10-24 No Yes No No Yes No 82 mm 103.2 mm 117.3 mm 1,195 g ET-89 [26]
RF 85mm F2 Macro IS STM f/2 2020-07-09 Yes No Yes Yes No No 67 mm 078 mm 090.5 mm 0500 g ET-77 [28]
RF 100mm F2.8 L MACRO IS USM f/2.8 2021-04-14 Yes Yes No Yes Yes No 67 mm 82 mm 148 mm 730 g ET-73C [29]
RF 100-400mm F5.6-8 IS USM f/5.6–8 2021-09-14 No Yes No Yes No No 67 mm 79.5 mm 164.5 mm 635 g ET-74B [17]
RF 100-500mm F4.5-7.1 L IS USM f/4.5–7.1 2020-07-09 No Yes No Yes Yes No 77 mm 093.8 mm 207.6 mm 1,365 g ET-83F (WIII) [30]
RF 400mm F2.8 L IS USM f/2.8 2021-04-14 No Yes No Yes Yes No 52 mm drop-in 163 mm 367 mm 2,890 g ET-155 (WIII)

ET-155B

 [31]
RF 600mm F4 L IS USM f/4 2021-04-14 No Yes No Yes Yes No 52 mm drop-in 168 mm 472 mm 3,090 g ET-160 (WIII)

ET-160B

 [31]
RF 600mm F11 IS STM f/11 2020-07-09 No No Yes Yes No Yes 82 mm 093 mm 269.5 mm 0930 g ET-88B [28]
RF800mm F5.6 L IS USM f/5.6 2022-02-24 No Yes No Yes Yes No 52 mm drop-in 163 mm 432 mm 3,140 g ET-155 (long) ET-155B (short) [32]
RF 800mm F11 IS STM f/11 2020-07-09 No No Yes Yes No Yes 95 mm 101.6 mm 351.8 mm 1,260 g ET-101 [28]
RF1200mm F8 L IS USM f/8 2022-02-24 No Yes No Yes Yes No 52 mm drop-in 168 mm 537 mm 3,340 g ET-160 (long) ET-160B (short) [33]
  • RF24–105 mm f/4L IS USM
  • RF28–70 mm f/2L USM
  • RF35 mm f/1.8 MACRO IS STM
  • RF85 mm f/2.0 MACRO IS STM at Canon EOS R6
  • RF600 mm f/11 IS STM
  • RF800 mm f/11 IS STM at Canon EOS R5
  • RF85 mm f/1.2L USM on a Canon EOS R6
  • Canon RF 24-240 mm f/4-6.3 IS USM

3rd party RF-mount lenses
Focal length Aperture range Introduced Autofocus Macro USM STM IS DO Filter
size		 Lens
diameter		 Lens
length		 Weight Manufacture Source
Samyang AF 14 mm f/2.8 RF f/2.8 2019 Yes No No No No No rear Filter 86 mm 95.3 mm 484 g Samyang/Rokinon [34]
Samyang MF 14 mm f/2.8 RF f/2.8 2019 No No No No No No - 87 mm 120.1 mm 800 g Samyang [35]
Samyang AF 85 mm f/1.4 RF f/1.4 2020 Yes No No No No No 77 mm 88 mm 99.5 mm 582 g Samyang/Rokinon [36]
Samyang MF 85 mm f/1.4 RF f/1.4 2019 No No No No No No 72 mm 78 mm 98.7 mm 730 g Samyang [37]
Irix Cine 11 mm T 4.3 T 4.3 - No No No No No No - 95 mm 129.5 mm 1175.8 g Irix [38]
Irix Cine 15 mm T 2.6 T 2.6 - No No No No No No 86 mm 95 mm 115 mm 969.4 g Irix [39]
Yongnuo YN35mm F2R DF DSM f/2.0 2021 Yes No No No No No 52 mm 67 mm 72 mm 280 g Yongnuo [40]
Yongnuo YN85mm F1.8R DF DSM f/1.8 2021 Yes No No No No No 58 mm 67 mm 88 mm 380 g Yongnuo [41]
Viltrox AF 85mm F1.8 RF f/1.8 2021 Yes No No No No No 72 mm 80 mm 98 mm 530 g Viltrox [42]
  • Samyang AF 85 mm f/1.4 RF

Canon RF Mount Lenses Timeline
Type Focal length Aperture 2018 2019 2020 2021 2022
Prime 5.2 f/2.8 RF 5.2mm f/2.8 L Dual Fisheye
16 RF 16mm f/2.8 STM
35 f/1.8 RF 35mm f/1.8 MACRO IS STM
50 f/1.2 RF 50mm f/1.2L USM
f/1.8 RF 50mm f/1.8 STM
85 f/1.2 RF 85mm f/1.2 L USM
RF 85mm f/1.2 L USM DS
f/2 RF 85mm f/2 MACRO IS STM
100 f/2.8 RF 100mm f/2.8L MACRO IS USM
400 RF 400mm f/2.8L IS USM
600 f/4 RF 600mm f/4L IS USM
f/11 RF 600mm f/11 IS STM
800 f/5.6 RF 800mm f/5.6L IS USM
f/11 RF 800mm f/11 IS STM
1200 f/8 RF 1200mm f/8L IS USM
Zoom 14–35 f/4 RF 14–35mm f/4 L IS USM
15–35 f/2.8 RF 15-35mm f/2.8 L IS USM
24–70 RF 24–70mm f/2.8 L IS USM
24–105 f/4.0 RF 24–105mm f/4L IS USM
f/4–7.1 RF 24–105mm f/4–7.1 IS STM
24–240 f/4–6.3 RF 24–240mm f/4–6.3 IS USM
28–70 f/2.0 RF 28–70mm f/2L USM
70–200 f/2.8 RF 70–200mm f/2.8 L IS USM
f/4 RF 70–200mm f/4 L IS USM
100–400 f/5.6–8 RF 100–400mm f/5.6–8 IS USM
100–500 f/4.5–7.1 RF 100–500mm f/4.5–7.1L IS USM
Teleconverter Extender RF 1.4×
Extender RF 2×
Adapter Mount Adapter EF-EOS R
Control Ring Mount Adapter EF-EOS R
Drop-In Filter Mount Adapter EF-EOS R
Type Focal length Aperture 2018 2019 2020 2021 2022
legend L lenses USM lenses STM lenses


See also

References
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  2. "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.
  3. "Everything you need to know about Canon's EOS R mirrorless camera". Engadget. Retrieved 2018-09-05.
  4. "Canon EOS R full-frame mirrorless and more expected Sept. 5, reportedly". CNET. 31 August 2018. Retrieved 2018-09-05.
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  6. "Canon's full-frame mirrorless EOS R is now official". CNET. 5 September 2018. Retrieved 2018-09-05.
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  12. Keller, Jeff (2019-02-09). "Canon developing six new RF lenses, including ultra-compact 70-200 F2.8". Digital Photography Review. Retrieved 2019-02-17.
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  15. "Canon Introduces New RF14-35mm F4 L IS USM Lens Broadening Imaginative Possibilities For Still And Video". usa.canon.com. 2021-06-29. Archived from the original on 2021-06-29. Retrieved 2021-06-29.
  16. "New Canon RF Mount Lenses Bring Optical Excellence to Pro and Advanced Amateur Photographers". usa.canon.com. Retrieved 2019-09-01.
  17. "Canon Completes Another Chapter in the RF Lens Story – Introduces Two New Budget-Friendly Lenses for EOS R Full-Frame Mirrorless Users". usa.canon.com. 2021-09-14. Archived from the original on 2021-09-14. Retrieved 2021-09-14.
  18. "Canon RF 24-105mm f/4L IS USM". Retrieved 2019-02-07.
  19. "Adding to your Lens Arsenal: Canon Introduces its New RF 24-105mm STM Standard Zoom Lens". 2020-02-12. Archived from the original on 2020-02-14. Retrieved 2020-02-13.
  20. "Alerting All Wanderlust Photographers, Canon Announces Its First RF Telephoto Zoom Lens, The RF 24-240mm F4-6.3 IS USM". Retrieved 2019-07-09.
  21. Deutschland, Canon. "Technische Daten & Funktionem für das RF 24-240mm F4-6.3 IS USM Objektiv". www.canon.de (in German). Retrieved 2019-07-09.
  22. "Canon RF 28-70mm f/2L USM". Retrieved 2019-02-07.
  23. "Canon RF 35mm f/1.8 IS Macro STM". Retrieved 2019-02-07.
  24. "Canon RF 50mm f/1.2L USM". Retrieved 2019-02-07.
  25. "Canon Adds Two RF Lenses And PIXMA PRO Printer Ideal For The Enthusiast Photographer". usa.canon.com. 2020-11-03. Archived from the original on 2020-11-04. Retrieved 2020-11-03.
  26. Deutschland, Canon (24 October 2019). "Canon erweitert sein RF Objektivangebot um das RF 70-200mm F2.8L IS USM und das RF 85mm F1.2L USM DS - Canon Presse Center". Come and See (in German). Retrieved 2019-12-01.
  27. "RF 85mm F1.2 L USM". Retrieved 2019-05-09.
  28. "The Secret Is Out: Canon Officially Announces The Canon EOS R5 and R6, The Company's Most Advanced Full-Frame Mirrorless Cameras Ever". www.usa.canon.com/. 2020-07-09. Archived from the original on 2020-07-09. Retrieved 2020-11-03.
  29. Rumors, Canon (2021-04-14). "Canon officially announces the Canon RF 100mm f/2.8L IS USM Macro". Canon Rumors - Your best source for Canon rumors, leaks and gossip. Retrieved 2021-04-14.
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  32. "RF800mm F5.6 L IS USM Lens". 2022-02-24. Retrieved 2022-02-24.
  33. "RF1200mm F8 L IS USM Lens". 2022-02-24. Retrieved 2022-02-24.
  34. "The World's First AF 14mm for RF Mount".
  35. "Samyang Optics". Samyang Optics. Retrieved 2020-09-05.
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