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. The RF mount was announced in September 2018. In May 2022, Canon announced APS-C EOS R cameras (the EOS R10 and EOS R7) and RF-S lenses designed for these cameras.

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.

The "RF" retroactively stands for "Re-Imagined Focus".

Details Canon full-frame cameras have used the EF lens mount since 1987. The RF mount's inner diameter is the same at 54 mm, while its flange focal distance, at 20 mm, is shorter than that of the Canon EF and EF-S mounts at 44 mm and longer than the EF-M mount at 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. The three adapters have differing features: 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.

Cameras All Canon EOS R-series cameras utilize the RF lens mount, starting with the EOS R. In addition, the following digital movie cameras in the Cinema EOS series utilize the RF mount:

Canon EOS C50 Canon EOS C70 Canon EOS C80 Canon EOS C400

In 2022, Canon licensed the RF lens mount to Red Digital Cinema, allowing the company to use the lens mount on the following cinema cameras:

RED Komodo 6K RED Komodo-X RED V-Raptor [X] RED V-Raptor XL [X]

Lenses

When Canon announced its first R-series body, it announced four new RF-mount lenses: RF 24–105mm L IS USM RF 28–70mm L USM RF 35mm MACRO IS STM — 0.5× maximum magnification. RF 50mm L USM

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: RF 85mm L USM RF 85mm 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. RF 24–240mm IS USM RF 15–35mm L IS USM RF 24–70mm L IS USM RF 70–200mm L IS USM

In 2022, Canon introduced the first RF-S lenses (the 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 sensors in the R-System. Unlike EF-S mount lenses, RF-S lenses can be mounted on full-frame camera bodies; the camera body will automatically crop the image to fit the smaller image circle of the mounted lens.

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

First-party lenses

+ Canon RF-mount lenses Focal length(mm) range IS L AF Filtersize Lens Lenslength Weight Type Hood 3.9 RF-SDualFisheye RF-SSTM Rear gelatin × Prime 2024-06-11 5.2 L DualFisheye Rear gelatin × Prime 2021-10-06 7-14 L IS STM Fisheye STM Drop-in Filter Zoom EW-76 2026-02-04 7.8 RF-SDualFisheye RF-SSTM Prime 2024-10-30 10–18 RF-SIS STM STM Zoom EW-53B 2023-11-02 10–20 L IS STM STM Rear gelatin Zoom built into lens 2023-10-11 14 L VCM Nano USM, VCM Rear gelatin Prime built into lens 2026-02-04 14–30 RF-S IS STM PZ STM Zoom EW-63C 2025-03-26 14–35 L IS USM USM Zoom EW-83P 2021-06-29 15–30 IS STM STM Zoom EW-73E 2022-07-12 15–35 L IS USM USM Zoom EW-88F 2019-08-28 16 STM STM Prime EW-65C 2021-09-14 16–28 IS STM STM Zoom EW-73E 2025-01-24 18–45 RF-S IS STM STM Zoom EW-53 2022-05-25 18–150 RF-S IS STM STM Zoom EW-60F 2022-05-25 20 L VCM Nano USM, VCM Prime EW-73G 2025-06-26 20–50 L IS USM PZ USM Zoom EW-73H 2026-05-13 24 L VCM Nano USM, VCM Prime EW-73G 2024-10-30 24 Macro IS STM STM Prime EW-65B 2022-07-12 24–50 IS STM STM Zoom EW-63C 2023-02-08 24–70 L IS USM USM Zoom EW-88E 2019-08-28 24–105 L IS USM USM Zoom EW-88E 2023-11-02 24–105 L IS USM USM Zoom EW-83N 2018-09-05 24–105 IS STM STM Zoom EW-73D 2020-02-13 24–240 IS USM USM Zoom EW-78F 2019-07-09 28 STM STM Prime EW-55 2023-05-24 28–70 L USM USM Zoom EW-103 2018-09-05 28–70 IS STM STM Zoom EW-73D 2024-09-12 35 L VCM Nano USM, VCM Prime EW-73F 2024-06-05 35 Macro IS STM STM Prime EW-52 2018-09-05 45 STM STM Prime ES-73B 2025-11-06 50 L USM USM Prime ES-83 2018-09-05 50 L VCM Nano USM, VCM Prime ES-73 2024-10-30 50 STM STM Prime ES-65B 2020-11-04 55–210 RF-S IS STM STM Zoom ET-60B 2023-02-08 70–200 L IS USM USM Zoom ET-83F (WIII) 2019-10-24 70–200 L IS USM Z USM Zoom ET-88C (WIII or B) 2024-10-30 70–200 L IS USM USM Zoom ET-83G (WIII) 2020-11-04 75–300 DC D.C. Zoom ET-60 2025-04-29 85 L USM USM Prime ET-89 2019-05-08 85 L USM USM Prime ET-89 2019-10-24 85 L VCM Nano USM, VCM Prime EW-73C 2025-09-09 85 Macro IS STM STM Prime ET-77 2020-07-09 100 Macro L IS USM USM Prime ET-73C 2021-04-14 100–300 L IS USM USM Zoom ET-124 2023-04-20 100–400 IS USM USM Zoom ET-74B 2021-09-14 100–500 L IS USM USM Zoom ET-83F (WIII) 2020-07-09 135 L IS USM USM Prime EW-88B 2022-11-02 200–800 IS USM USM Zoom ET-101 2023-11-02 400 L IS USM USM drop-in Prime ET-155 (WIII)ET-155B 2021-04-14 600 L IS USM USM drop-in Prime ET-160 (WIII) ET-160B 2021-04-14 600 IS STM STM Prime ET-88B 2020-07-09 800 L IS USM USM drop-in Prime ET-155 (long)ET-155B (short) 2022-02-24 800 IS STM STM Prime ET-101 2020-07-09 1200 L IS USM USM drop-in Prime ET-160 (long)ET-160B (short) 2022-02-24

Timeline

Type Focal length 2018 2019 2020 2021 2022 2023 2024 2025 2026Prime 3.9 RF-S 3.9mm STM DUAL FISHEYE 5.2 RF 5.2mm L Dual Fisheye 7.8 RF-S 7.8mm STM Dual Lens VR 14 RF 14mm L VCM 16 RF 16mm STM 20 RF 20mm L VCM 24RF 24mm L VCM RF 24mm Macro IS STM 28 RF 28mm STM 35 RF 35mm L VCM RF 35mm Macro IS STM 45 RF 45mm STM 50 RF 50mm L USM RF 50mm L VCM RF 50mm STM 85 RF 85mm L USM RF 85mm L USM DS RF 85mm Macro IS STM 100 RF 100mm L Macro IS USM 135 RF 135mm L IS USM 400 RF 400mm L IS USM (combinable: RF 1.4× & RF 2×) 600 RF 600mm L IS USM (combinable: RF 1.4× & RF 2×) RF 600mm IS STM (combinable: RF 1.4× & RF 2×)800 RF 800mm L IS USM (combinable: RF 1.4× & RF 2×) RF 800mm IS STM (combinable: RF 1.4× & RF 2×) 1200 RF 1200mm L IS USM (combinable: RF 1.4× & RF 2×) Zoom 7–14 RF 7-14mm L FISHEYE STM 10–18 RF-S 10–18mm IS STM 10–20 RF 10–20mm L IS STM 14–30 RF-S 14–30mm IS STM PZ 14–35 RF 14–35mm L IS USM 15–30 RF 15–30mm IS STM 15–35 RF 15–35mm L IS USM 16–28 RF 16–28mm IS STM 18–45 RF-S 18–45mm IS STM 18–150 RF-S 18–150mm IS STM 20–50 RF 20-50MM L IS USM PZ 24–50 RF 24–50mm IS STM 24–70 RF 24–70mm L IS USM 24–105 RF 24–105mm L IS USM Z RF 24–105mm L IS USM RF 24–105mm IS STM 24–240 RF 24–240mm IS USM 28–70 RF 28–70mm L USM 28–70 RF 28–70mm IS STM 55–210 RF-S 55–210mm IS STM 70–200 RF 70–200mm L IS USMRF 70-200mm L IS USM Z RF 70–200mm L IS USM 75–300 RF 75–300mm 100–300 RF 100–300mm L IS USM 100–400 RF 100–400mm IS USM (combinable: RF 1.4× & RF 2×) 100–500 RF 100–500mm L IS USM (combinable: RF 1.4× & RF 2×) 200–800 RF 200–800mm IS USM TeleconverterExtender RF 1.4×Extender RF 2× AdapterMount Adapter EF-EOS RControl Ring Mount Adapter EF-EOS RDrop-In Filter Mount Adapter EF-EOS R Type Focal length Aperture 2018 2019 2020 2021 2022 2023 2024 2025 2026 legendL lensesUSM lensesSTM lenses lenses

Third-party lenses

Note: The Samyang, Yongnuo, and Viltrox autofocus lenses are discontinued due to requests by Canon.

Currently, Canon allows third parties to produce manual-focus lenses, as well as autofocus lenses that cover only the APS-C image circle (equivalent to Canon RF-S lenses). For example, all Sigma lenses in this list are "DC" lenses, the company's designation for lenses made for APS-C cameras.

+ Third-party RF-mount lenses Lens Focal length (mm) range Macro IS DO Filtersize Lens Lenslength Weight 12 mm Fisheye 12 AstrHori 18 mm Shift 18 AstrHori 18 mm f/8 2X Macro 18 AstrHori 28 mm f/13 2X Macro 28 AstrHori 50 mm f/1.4 Tilt 50 AstrHori 50 mm f/2 50 AstrHori 85 mm f/2.8 Macro Tilt 85 AstrHori Cine 11 mm T 4.3 11 T 4.3 Irix Cine 15 mm T 2.6 15 T 2.6 Irix AF 85 mm autofocus 85 2023 Meike AF 14 mm RF 14 2019 rear Filter Samyang/Rokinon MF 14 mm RF 14 2019 Samyang AF 85 mm RF 85 2020 Samyang/Rokinon MF 85 mm RF 85 2019 Samyang Art 17–40mm F1.8 DC 17–40 2025 Sigma Contemporary 10–18mm F2.8 DC DN 10–18 2024 Sigma Contemporary 12mm F1.4 DC 12 2025 Sigma Contemporary 15mm F1.4 DC 15 2026 Sigma Contemporary 16mm F1.4 DC DN 16 2025 Sigma Contemporary 16–300mm F3.5–6.7 DC OS 16–300 –6.7 2025 Sigma Contemporary 18–50mm F2.8 DC DN 18–50 2024 Sigma Contemporary 23mm F1.4 DC DN 23 2023 Sigma Contemporary 30mm F1.4 DC DN 30 2024 Sigma Contemporary 56mm F1.4 DC DN 56 2024 Sigma 11–20mm F2.8 Di III-A RXD 11–20 2024 Tamron 17-70mm F/2.8 Di III-A VC RXD 17-70 2026 Tamron 18–300mm F/3.5-6.3 Di III-A VC VXD 18–300 –6.3 2025 Tamron AF 85mm F1.8 RF 85 2021 Viltrox 40mm F1.2 Aspherical NOKTON40 Voigtländer 50mm F1.0 Nokton 50 2023 Voigtländer 75mm F1.5 Aspherical NOKTON 75 2024 Voigtländer YN35mm F2R DF DSM 35 2021 Yongnuo YN85mm F1.8R DF DSM 85 2021 Yongnuo Otus ML 1.4/35352026 Zeiss Otus ML 1.4/5050 Zeiss Otus ML 1.4/8585 Zeiss Mitakon Speedmaster 20mm T1.0 S35 Cine 20 T 1.0 Zhongyi Optics Mitakon Creator 28mm f/5.6 Lens 28 Zhongyi Optics Mitakon Speedmaster Cinema Lens 35mm T1.0 35 T 1.0 Zhongyi Optics Mitakon Speedmaster 35mm f/0.95 35 Zhongyi Optics Mitakon Speedmaster 50mm f/0.95 III 50 Zhongyi Optics Mitakon Speedmaster 90mm f/1.5 Lens 90 Zhongyi Optics Mitakon Creator 135mm f/2.5 Lens 135 Zhongyi Optics Mitakon 200mm f/4 1x Macro Lens 200 Zhongyi Optics

See also Canon EF-M lens mount Canon EF lens mount Nikon Z-mount Sony E-mount

References

External links