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. The RF mount was announced in September 2018.
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. 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. The three adapters have differing features:
The EOS R is a 30 megapixel 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 crop camera.

Lenses

At the time Canon announced its first R-series body, it announced four new RF-mount lenses:
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:
In 2020, Canon has announced 5 new RF mount lenses:
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:
Focal lengthAperture rangeIntroducedMacroUSMSTMISL-SeriesDOFilter
size		Lens
diameter		Lens
length		WeightSource
RF 15–35 mm 2.8L IS USM2.8201982 mm88.5 mm126.8 mm840 g
RF 24–70 mm 2.8L IS USM2.8201982 mm88.5 mm125.7 mm900 g
RF 24–105 mm 4–7.1 IS STM4–7.1202067 mm76.6 mm88.8 mm395 g
RF 24–105 mm 4L IS USM4201877 mm83.5 mm107.3 mm700 g
RF 24–240 mm 4–6.3 IS USM4–6.3201972 mm80.4 mm122.5 mm750 g
RF 28–70 mm 2L USM2201895 mm103.8 mm139.8 mm1,430 g
RF 70–200 mm 2.8L IS USM2.8201977 mm89.9 mm146 mm1,070 g
RF 35 mm 1.8 MACRO IS STM1.8201852 mm74.4 mm62.8 mm305 g
RF 50 mm 1.2L USM1.2201877 mm89.8 mm108 mm950 g
RF 85 mm 1.2L USM1.2201982 mm103.2 mm117.3 mm1,195 g
RF 85 mm 1.2L USM DS1.2201982 mm103.2 mm117.3 mm1,195 g
RF 100–500 mm 4.5–7.1L IS USM4.5–7.1202077 mm93.8 mm207.6 mm1,365 g
RF 600 mm 11 IS STM11202082 mm93 mm269.5 mm930 g
RF 800 mm 11 IS STM11202095 mm101.6 mm351.8 mm1,260 g
RF 85 mm 2 MACRO IS STM2202067 mm78 mm90.5 mm500 g

3rd party RF-mount lenses

Focal lengthAperture rangeIntroducedMacroUSMSTMISDOFilter
size		Lens
diameter		Lens
length		WeightManufactureSource
Samyang AF 14 mm 2.8 RF2.82019rear Filter86 mm95.3 mm484 gSamyang