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] 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]

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 RF-S or 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.[9] The three adapters have differing features:[10]

  • 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, released in 2019.

If an EF-EOS R Mount Adapter is used to mount an EF-S lens, the image will have to be cropped by 1.6x due to the smaller image circle on EF-S lenses.

Lenses
RF50mm F1.2 L USM without lens hood

When Canon announced its first R-series body, it announced four new RF-mount lenses:[11]

  • RF 24–105mm f/4 L IS USM
  • RF 28–70mm f/2 L USM
  • RF 50mm f/1.2 L USM
  • RF 35mm f/1.8 MACRO IS STM — 0.5× maximum magnification.[12]

In conjunction with the February 2019 announcement of the entry-level full-frame EOS RP, Canon announced six additional lenses would be released by the end of that year, although it did not indicate release dates for any of them:[13]

  • RF 85mm f/1.2 L USM
  • RF 85mm f/1.2 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.[14]
  • RF 15–35mm f/2.8 L IS USM
  • RF 24–70mm f/2.8 L IS USM
  • RF 24–240mm f/4–6.3 IS USM
  • RF 70–200mm f/2.8 L IS USM

In 2020, Canon introduced seven new RF mount lenses:

  • RF 24–105mm f/4–7.1 IS STM
  • RF 600mm f/11 IS STM — fixed-aperture lens
  • RF 800mm f/11 IS STM — fixed-aperture lens
  • RF 85mm f/2 MACRO IS STM — 0.5× maximum magnification
  • RF 50mm f/1.8 STM
  • RF 70–200mm f/4 L IS USM
  • RF 100–500mm f/4.5–7.1 L IS USM

In 2021, Canon introduced seven new RF mount lenses:

  • RF 100mm f/2.8 L MACRO IS USM - 1.4× maximum magnification
  • RF 400mm f/2.8 L IS USM
  • RF 600mm f/4 L IS USM
  • RF 14–35mm f/4 L IS USM
  • RF 16mm f/2.8 STM
  • RF 100–400mm f/5.6–8 IS USM
  • RF 5.2mm f/2.8 L Dual Fisheye

In 2022, Canon introduced the first RF-S lenses (RF-S 18-150mm and the RF-S 18-45mm) for APS-C Sensors, together with the R7 and R10 camera bodies with the first built in APS-C Sensor in the R-System.

In 2022, Canon introduced seven new RF mount lenses:

  • RF 1200mm f/8 L IS USM
  • RF 800mm f/5.6 L IS USM
  • RF-S 18-150mm f/3.5-6.3 IS STM
  • RF-S 18-45mm f/4.5-6.3 IS STM
  • RF 24mm f/1.8 MACRO IS STM - 0.5×maximum magnification
  • RF 15–30mm f/4.5–6.3 IS STM
  • RF 135mm f/1.8 L IS USM

As of October 2023, Canon has introduced six new RF mount lenses:

  • RF 24-50mm f/4.5-6.3 IS STM
  • RF 28mm f/2.8 STM
  • RF-S 55-210mm f/5.0-7.1 IS STM
  • RF 100-300mm f/2.8 L IS USM
  • RF 14–35mm f/4 L IS USM
  • RF 10-20mm f/4 L IS STM

RF-mount lenses are not compatible with EF, EF-S or EF-M mount camera bodies. RF-S lenses can be used on full-frame RF cameras. However, the image will be cropped by 1.6×.

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 f/2.8 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 - [16]
RF 10-20mm f/4 L IS STM f/4 2023-10-11 No No Yes Yes Yes No gelatin filter holder 83.7 mm 112 mm 570 g built into lens [17]
RF 14-35mm f/4 L IS USM f/4 2021-06-29 No Yes No Yes Yes No 077 mm 084.1 mm 099.8 mm 0540 g EW-83P [18]
RF 15-30mm f/4.5-6.3 IS STM f/4.5-6.3 2022-07-12 No No Yes Yes No No 067 mm 076.6 mm 088.4 mm 0390 g EW-73E [19]
RF 15-35mm f/2.8 L IS USM f/2.8 2019-08-28 No Yes No Yes Yes No 082 mm 088.5 mm 126.8 mm 0840 g EW-88F [20]
RF 16mm f/2.8 STM f/2.8 2021-09-14 No No Yes No No No 043 mm 068.5 mm 040.6 mm 0165 g EW-65C [21]
RF-S 18-45mm f/4.5-6.3 IS STM f/4.5-6.3 2022-05-25 No No Yes Yes No No 049 mm 069.0 mm 044.3 mm 0130 g EW-53 [22]
RF-S 18-150mm f/3.5-6.3 IS STM f/3.5-6.3 2022-05-25 No No Yes Yes No No 055 mm 069.0 mm 084.5 mm 0310 g EW-60F [22]
RF 24mm f/1.8 Macro IS STM f/1.8 2022-07-12 Yes No Yes Yes No No 052 mm 074.4 mm 063.1 mm 0270 g EW-65B [19]
RF 24-50mm f/4.5-6.3 IS STM f/4.5–6.3 2023-02-08 No No Yes Yes No No 058 mm 069.6 mm 058 mm 0210 g EW-63C [23]
RF 24-70mm f/2.8 L IS USM f/2.8 2019-08-28 No Yes No Yes Yes No 082 mm 088.5 mm 125.7 mm 0900 g EW-88E [20]
RF 24-105mm f/4 L IS USM f/4 2018-09-05 No Yes No Yes Yes No 077 mm 083.5 mm 107.3 mm 0700 g EW-83N [24]
RF 24-105mm f/4-7.1 IS STM f/4–7.1 2020-02-13 No No Yes Yes No No 067 mm 076.6 mm 088.8 mm 0395 g EW-73D [25]
RF 24-240mm f/4-6.3 IS USM f/4–6.3 2019-07-09 No Yes No Yes No No 072 mm 080.4 mm 122.5 mm 0750 g EW-78F [26][27]
RF 28mm f/2.8 STM f/2.8 2023-05-24 No No Yes No No No 055 mm 069.2 mm 024.7 mm 0120 g EW-55 [28]
RF 28-70mm f/2 L USM f/2 2018-09-05 No Yes No No Yes No 095 mm 103.8 mm 139.8 mm 1,430 g EW-103 [29]
RF 35mm f/1.8 Macro IS STM f/1.8 2018-09-05 Yes No Yes Yes No No 052 mm 074.4 mm 062.8 mm 0305 g EW-52 [30]
RF 50mm f/1.2 L USM f/1.2 2018-09-05 No Yes No No Yes No 077 mm 089.8 mm 0108 mm 0950 g ES-83 [31]
RF 50mm f/1.8 STM f/1.8 2020-11-04 No No Yes No No No 043 mm 069.2 mm 040.5 mm 0160 g ES-65B [32]
RF-S 55-210mm f/5.0-7.1 IS STM f/5.0–7.1 2023-02-08 No No Yes Yes No No 055 mm 069 mm 092.9 mm 0270 g ET-60B [33]
RF 70-200mm f/2.8 L IS USM f/2.8 2019-10-24 No Yes No Yes Yes No 077 mm 089.9 mm 146 mm 1,070 g ET-83F (WIII) [34]
RF 70-200mm f/4 L IS USM f/4 2020-11-04 No Yes No Yes Yes No 077 mm 083.5 mm 119 mm 0695 g ET-83G (WIII) [32]
RF 85mm f/1.2 L USM f/1.2 2019-05-08 No Yes No No Yes No 082 mm 103.2 mm 117.3 mm 1,195 g ET-89 [35]
RF 85mm f/1.2 L USM DS f/1.2 2019-10-24 No Yes No No Yes No 082 mm 103.2 mm 117.3 mm 1,195 g ET-89 [34]
RF 85mm f/2 Macro IS STM f/2 2020-07-09 Yes No Yes Yes No No 067 mm 078 mm 090.5 mm 0500 g ET-77 [36]
RF 100mm f/2.8 L MACRO IS USM f/2.8 2021-04-14 Yes Yes No Yes Yes No 067 mm 082 mm 148 mm 0730 g ET-73C [37]
RF 100–300mm f/2.8 L IS USM f/2.8 2023-04-20 No Yes No Yes Yes No 112 mm 128 mm 323.4 mm 2,650 g ET-124 [38]
RF 100-400mm f/5.6-8 IS USM f/5.6–8 2021-09-14 No Yes No Yes No No 067 mm 079.5 mm 0164.5 mm 0635 g ET-74B [21]
RF 100-500mm f/4.5-7.1 L IS USM f/4.5–7.1 2020-07-09 No Yes No Yes Yes No 077 mm 093.8 mm 207.6 mm 1,365 g ET-83F (WIII) [39]
RF 135mm f/1.8 L IS USM f/1.8 2022-11-02 No Yes No Yes Yes No 082 mm 089.2 mm 130.3 mm 935 g EW-88B [40]
RF 400mm f/2.8 L IS USM f/2.8 2021-04-14 No Yes No Yes Yes No 052 mm drop-in 163 mm 367 mm 2,890 g ET-155 (WIII) 
ET-155B
 [41]
RF 600mm f/4 L IS USM f/4 2021-04-14 No Yes No Yes Yes No 052 mm drop-in 168 mm 472 mm 3,090 g ET-160 (WIII) 
ET-160B
 [41]
RF 600mm f/11 IS STM f/11 2020-07-09 No No Yes Yes No Yes 082 mm 093 mm 269.5 mm 0930 g ET-88B [36]
RF 800mm f/5.6 L IS USM f/5.6 2022-02-24 No Yes No Yes Yes No 052 mm drop-in 163 mm 432 mm 3,140 g ET-155 (long) ET-155B (short) [42]
RF 800mm f/11 IS STM f/11 2020-07-09 No No Yes Yes No Yes 095 mm 101.6 mm 351.8 mm 1,260 g ET-101 [36]
RF 1200mm f/8 L IS USM f/8 2022-02-24 No Yes No Yes Yes No 052 mm drop-in 168 mm 537 mm 3,340 g ET-160 (long) ET-160B (short) [43]
  • RF 24–105 mm f/4L IS USM
    RF 24–105 mm f/4L IS USM
  • RF 28–70 mm f/2L USM
    RF 28–70 mm f/2L USM
  • RF 35 mm f/1.8 MACRO IS STM
    RF 35 mm f/1.8 MACRO IS STM
  • RF 85 mm f/2.0 MACRO IS STM
    RF 85 mm f/2.0 MACRO IS STM
  • RF 600 mm f/11 IS STM
    RF 600 mm f/11 IS STM
  • RF 800 mm f/11 IS STM at Canon EOS R5
    RF 800 mm f/11 IS STM at Canon EOS R5
  • RF 85 mm f/1.2L USM on a Canon EOS R6
    RF 85 mm f/1.2L USM on a Canon EOS R6
  • RF 24–240 mm f/4–6.3 IS USM
    RF 24–240 mm f/4–6.3 IS USM
  • RF 15–35 mm f/2.8L IS USM
    RF 15–35 mm f/2.8L IS USM
  • RF 100 mm f/2.8L IS USM MACRO
    RF 100 mm f/2.8L IS USM MACRO
  • RF 100–400 mm f/5.6–8 IS USM
    RF 100–400 mm f/5.6–8 IS USM

3rd party RF-mount lenses

Note: The Samyang, Yongnuo, and Viltrox AF 85mm f/1.4 are not for sale any longer in U.S. markets.

Focal length Aperture range Introduced Autofocus Macro USM STM IS DO Filter
size		 Lens
diameter		 Lens
length		 Weight Manufacture Source
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 [44]
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 [45]
Meike AF 85 mm f/1.4 autofocus f/1.4 2023 Yes No No No No No 77 mm Meike [46]
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 [47]
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 [48]
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 [49]
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 [50]
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 [51]
Yongnuo YN35mm F2R DF DSM f/2.0 2021 Yes No No No No No 52 mm 67 mm 72 mm 280 g Yongnuo [52]
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 [53]
  • Samyang AF 85 mm f/1.4 RF
    Samyang AF 85 mm f/1.4 RF

Canon RF Mount Lenses Timeline
Type Focal length Aperture 2018 2019 2020 2021 2022 2023
Prime 5.2 f/2.8 RF 5.2mm f/2.8 L Dual Fisheye
16 RF 16mm f/2.8 STM
24 f/1.8 RF 24mm f/1.8 Macro IS STM
28 f/2.8 RF 28mm f/2.8 STM
35 f/1.8 RF 35mm f/1.8 MACRO IS STM
50 f/1.2 RF 50mm f/1.2 L 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/2.8 L MACRO IS USM
135 f/1.8 RF 135mm f/1.8 L IS USM
400 f/2.8 RF 400mm f/2.8 L IS USM |(combinable: RF 1.4×[54] & RF 2×[55])
600 f/4 RF 600mm f/4 L IS USM |(combinable: RF 1.4×[56] & RF 2×[57])
f/11 RF 600mm f/11 IS STM |(combinable: RF 1.4×[58] & RF 2×[59])
800 f/5.6 RF 800mm f/5.6 L IS USM | (combinable: RF 1.4×[60] & RF 2×[61])
f/11 RF 800mm f/11 IS STM | (combinable: RF 1.4×[62] & RF 2×[63])
1200 f/8 RF 1200mm f/8 L IS USM | (combinable: RF 1.4×[64] & RF 2×[65])
Zoom 10–20 f/4 RF 10–20mm f/4 L IS STM
14–35 RF 14–35mm f/4 L IS USM
15–30 f/4.5-6.3 RF 15–30mm f/4.5–6.3 IS STM
18–45 RF-S 18–45mm f/4.5–6.3 IS STM
18–150 f/3.5-6.3 RF-S 18–150mm f/3.5–6.3 IS STM
15–35 f/2.8 RF 15–35mm f/2.8 L IS USM
24–50 f/4.5–6.3 RF 24–50mm f/4.5–6.3 IS STM
24–70 f/2.8 RF 24–70mm f/2.8 L IS USM
24–105 f/4.0 RF 24–105mm f/4 L 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/2 L USM
55–210 f/5–7.1 RF-S 55–210mm f/5–7.1 IS STM
70–200 f/2.8 RF 70–200mm f/2.8 L IS USM
f/4 RF 70–200mm f/4 L IS USM
100–300 f/2.8 RF 100–300mm f/2.8 L IS USM
100–400 f/5.6–8 RF 100–400mm f/5.6–8 IS USM | (combinable: RF 1.4×[66] & RF 2×[67])
100–500 f/4.5–7.1 RF 100–500mm f/4.5–7.1 L IS USM ¦ (combinable: RF 1.4×[68] & RF 2×[69])


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 2023
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.
  5. "Canon unveils new full-frame mirrorless camera, the EOS R". TechRadar. Retrieved 2018-09-05.
  6. "Canon's full-frame mirrorless EOS R is now official". CNET. 5 September 2018. Retrieved 2018-09-05.
  7. "Four RF-mount lenses kick off Canon's new full-frame mirrorless system". Digital Photography Review. Retrieved 2018-09-05.
  8. "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.
  9. "Canon Unveils the EOS R, Its First Full-Frame Mirrorless Camera". PetaPixel. 5 September 2018. Retrieved 2018-09-05.
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  11. "Canon EOS R full-frame mirrorless camera announced". The Verge. Retrieved 2018-09-05.
  12. "Canon RF 35mm F1.8 MACRO IS STM Specifications". Canon Europe. Retrieved 2020-05-22.
  13. 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.
  14. Etchells, Dave (2019-02-13). "Juicy technical tidbits on the Canon EOS RP - IR Interview/Q&A". Imaging Resource. Retrieved 2019-02-17.
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  16. "Virtual Reality Through a New Lens: Canon Introduces Their First Dual Fisheye Lens for Stereoscopic 3D 180° VR Capture in 8K". www.usa.canon.com. 2021-10-06. Archived from the original on 2021-10-06. Retrieved 2021-10-06.
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  25. "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.
  26. "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.
  27. 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.
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  57. https://store.canon.co.uk/canon-extender-rf-2x/4114C005/
  58. https://store.canon.co.uk/canon-extender-rf-1-4x/4113C005/
  59. https://store.canon.co.uk/canon-extender-rf-2x/4114C005/
  60. https://store.canon.co.uk/canon-extender-rf-1-4x/4113C005/
  61. https://store.canon.co.uk/canon-extender-rf-2x/4114C005/
  62. https://store.canon.co.uk/canon-extender-rf-1-4x/4113C005/
  63. https://store.canon.co.uk/canon-extender-rf-2x/4114C005/
  64. https://store.canon.co.uk/canon-extender-rf-1-4x/4113C005/
  65. https://store.canon.co.uk/canon-extender-rf-2x/4114C005/
  66. https://store.canon.co.uk/canon-extender-rf-1-4x/4113C005/
  67. https://store.canon.co.uk/canon-extender-rf-2x/4114C005/
  68. https://store.canon.co.uk/canon-extender-rf-1-4x/4113C005/
  69. https://store.canon.co.uk/canon-extender-rf-2x/4114C005/
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