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]
![]() Canon EOS RP with Canon RF mount visible | |
Type | bayonet |
---|---|
Inner diameter | 54 mm[1] |
Flange | 20 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.
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
At the time Canon announced its first R-series body, it announced four new RF-mount lenses:[10]
- Canon RF 24–105 mm f/4 L IS USM
- Canon RF 28–70 mm f/2 L USM
- Canon RF 50 mm f/1.2 L USM
- Canon RF 35 mm f/1.8 IS STM Macro – 0.5x 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]
- Canon RF 85 mm f/1.2L USM
- Canon RF 85 mm f/1.2L 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]
- Canon RF 24–70 mm f/2.8L IS USM
- Canon RF 15–35 mm f/2.8L IS USM
- Canon RF 70–200 mm f/2.8L IS USM
- Canon RF 24–240 mm f/4–6.3 IS USM
In 2020, Canon has announced 1 new RF mount lens:
- Canon RF 24–105 mm f/4–7.1 IS STM
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 EOS R
- Canon EOS RP
- Canon EOS Ra
- Canon EOS R5
Canon RF-mount lenses
Focal length | Aperture range | Introduced | Macro | USM | STM | IS | L-Series | DO | Filter size |
Lens diameter |
Lens length |
Weight | Source |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RF 15–35 mm f/2.8L IS USM | f/2.8 | 2019 | No | Yes | No | Yes | Yes | No | 82 mm | mm | 88.5126.8 mm | g | 840[14] |
RF 24–70 mm f/2.8L IS USM | f/2.8 | 2019 | No | Yes | No | Yes | Yes | No | 82 mm | mm | 88.5125.7 mm | g | 900[14] |
RF 24–105 mm f/4–7.1 IS STM | f/4–7.1 | 2020 | No | No | Yes | Yes | No | No | 67 mm | mm | 76.6mm | 88.8g | 395[15] |
RF 24–105 mm f/4L IS USM | f/4 | 2018 | No | Yes | No | Yes | Yes | No | 77 mm | mm | 83.5107.3 mm | g | 700[16] |
RF 24–240 mm f/4–6.3 IS USM | f/4–6.3 | 2019 | No | Yes | No | Yes | No | No | 72 mm | mm | 80.4122.5 mm | g | 750[17][18] |
RF 28–70 mm f/2L USM | f/2 | 2018 | No | Yes | No | No | Yes | No | 95 mm | 103.8 mm | 139.8 mm | 1,430 g | [19] |
RF 70–200 mm f/2.8L IS USM | f/2.8 | 2019 | No | Yes | No | Yes | Yes | No | 77 mm | mm | 89.9mm | 1461,070 g | [20] |
RF 35 mm f/1.8 MACRO IS STM | f/1.8 | 2018 | Yes | No | Yes | Yes | No | No | 52 mm | mm | 74.4mm | 62.8g | 305[21] |
RF 50 mm f/1.2L USM | f/1.2 | 2018 | No | Yes | No | No | Yes | No | 77 mm | mm | 89.8mm | 108g | 950[22] |
RF 85 mm f/1.2L USM | f/1.2 | 2019 | No | Yes | No | No | Yes | No | 82 mm | 103.2 mm | 117.3 mm | 1,195 g | [23] |
RF 85 mm f/1.2L USM DS | f/1.2 | 2019 | No | Yes | No | No | Yes | No | 82 mm | 103.2 mm | 117.3 mm | 1,195 g | [20] |
- RF24–105 mm f/4L IS USM
- RF28–70 mm f/2L USM
- RF35 mm f/1.8L MACRO IS STM
3rd party RF-mount lenses
Focal length | Aperture range | Introduced | 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 | ? | ? | ? | ? | ? | ? | ? | ? | 484 g | Samyang | [24] |
References
- 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. 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 Unveils the EOS R, Its First Full-Frame Mirrorless Camera". PetaPixel. 5 September 2018. Retrieved 2018-09-05.
- "Three EF-to-RF adapters available for EOS R". Digital Photography Review. Retrieved 2018-09-05.
- "Canon EOS R full-frame mirrorless camera announced". The Verge. Retrieved 2018-09-05.
- "Canon RF 35mm F1.8 MACRO IS STM Specifications". Canon Europe. Retrieved 2020-05-22.
- 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.
- Etchells, Dave (2019-02-13). "Juicy technical tidbits on the Canon EOS RP - IR Interview/Q&A". Imaging Resource. Retrieved 2019-02-17.
- "New Canon RF Mount Lenses Bring Optical Excellence to Pro and Advanced Amateur Photographers". usa.canon.com. Retrieved 2019-09-01.
- "Adding to your Lens Arsenal: Canon Introduces its New RF 24-105mm STM Standard Zoom Lens". 2020-02-12. Retrieved 2020-02-13.
- "Canon RF 24-105mm f/4L IS USM". Retrieved 2019-02-07.
- "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.
- 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.
- "Canon RF 28-70mm f/2L USM". Retrieved 2019-02-07.
- Deutschland, Canon. "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.
- "Canon RF 35mm f/1.8 IS Macro STM". Retrieved 2019-02-07.
- "Canon RF 50mm f/1.2L USM". Retrieved 2019-02-07.
- "RF 85mm F1.2 L USM". Retrieved 2019-05-09.
- "The World's First AF 14mm for RF Mount".