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 Mount Adapter EF-EOS M allows Canon EF and EF-S lenses to be mounted on the Canon EOS M Digital Camera. It is fully compatible with all lens functions, including image stabilization and auto focus.
Thankfully, the answer is YES! You can use EF lenses on the R5 and R6, although you will need to buy one of Canon's EF-RF mount adapters to do so. Then there's an adapter that includes a user programable ring around it, called the control ring.
Adapters are available to mount EF and EF-S lenses on an RF camera, but it's impossible for there to be an adapter to use RF lenses on an EF cameras. The lens simply can't get close enough to the sensor on an EF camera due to the size of the mirror box.
No, it only fits RF mount cameras such as the EOS R and RP. No, you cannot mount an RF lens on an EF mount DSLR. This lens was designed for the new mirrorless DSLR Canon line.
The EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens.
The Canon EOS RP sensor achieves an overall DXOMark score of 85 in our tests, which is a good solid result, even if it's a little behind the best of the leading-edge sensor results we've recorded. The RP's 26MP CMOS sensor is strong in the Portrait (color depth) test, maxing at 24.3 bits at its base ISO—a good result.
But even as such, the Canon EOS RP offers this standard feature in such a way as to feel like a minimum viable product rather than an attempt to actually give consumers a versatile hybrid camera. Lacking in more features than what is normal even for Canon, the EOS RP just isn't a very good video camera.
There is only one thing to report about the image stabilization, and that is unfortunately negative: the Canon EOS RP has no built-in image stabilization. That means that you are completely dependent on the lens that you use for image stabilization.
The EOS RP uses the same 26MP full-frame image sensor that the company put in the 6D Mark II SLR. The RP may not be Canon's advanced model, but it does offer Raw image capture.
TTL flash uses a series or infrared flash bursts before the flash actually fires. This flash information is returned back to the camera which then adjusts the flash power accordingly to set what it thinks is a well-balanced shot.
The EOS R and EOS RP are both loaded with Canon-developed full frame CMOS sensors, offering better image quality than smaller APS-C or Micro Four Thirds sensors. The sensor on the EOS R is 30.3MP, while the new EOS RP features a 26.2MP sensor, giving the EOS R a slight edge in terms of resolution.
Seems like they released the really pro high quality lenses first so that people will take the RF line seriously enough for professionals to buy into it. Now that everyone knows it's capable they'll start to release more affordable things I think.
Which Canon RF Mirrorless Lenses Should I Buy First?
- The Affordable All-Rounder: Canon RF 24-240mm f/4-6.3 IS USM. Canon. With the new RF lens mount, Canon is able to make lenses it never could have before—like the RF 24-240mm f/4-6.3 IS USM.
- A Portrait Pick: Canon RF 85mm f/2 Macro IS STM. Canon.
- A Lightweight Walk Around: Canon RF 35mm f/1.8 IS Macro STM. Canon.
The lens is optically stabilized – it features Canon's Image Stabilizer technology (IS). This is also the second version of such a lens with a stabilizer (II). Autofocus is driven by Canon's best motor. Full-time manual focus is available, while automatic focusing promises to be very snappy and quiet (USM).
And the RF 50, and 85 1.2 are definitely worth it. Trust me you will always have a big smile on your face while shooting and enjoying the post processing. I have rented 28-70 f2 to shoot exclusively with it on a wedding. While the images were good but not great and to me it did not have the POP like the other lenses.
Mirrorless Inter-Changeable Lens
RF mount lenses employ a 12-pin connection between the camera and lens — for comparison, the EF-mount uses 8 pins. Faster data transfer, which means lightning-fast autofocus, enhanced image stabilisation thanks to better communication between the camera and lens, and also provides general optimisation of image quality.
Top 3 Canon RF Lenses You Want
- Canon RF 15-35mm f/2.8L IS USM.
- Canon RF 24-70mm f/2.8L IS USM.
- Canon RF 70-200mm f/2.8 L IS USM.
The short answer is: Yes, you can use Canon EF/EF-S lenses on mirrorless Canon cameras.
The Canon EOS-RP is an entry-level mirrorless camera designed for amateur photographers who are ready or thinking about stepping into the full-frame mirrorless world. Paired with the EF-EOS R adapter, the EOS-RP system can make use of all of your existing EF lenses.
The EOS RP is also weather-sealed to the same degree as the EOS 6D Mark II (it's DSLR counterpart). On top of that it retains the same interface and other features that make Canon cameras pleasing to work with.
This is likely a cost-saving or space-saving measure (or both), but needless to the say, the battery life on the EOS RP isn't fantastic. The CIPA rating is around 250 shots per charge with the LCD and 210 with the EVF, using default modes and not the "ECO" LCD or "Power-saving" EVF mode.
The EOS RP camera features a Canon-developed and produced 35mm full-frame CMOS sensor with approx. 26.2 effective megapixels. It employs the DIGIC 8 Image Processor to enhance the speed of operations across the board.
Mirrorless cameras have the advantage of usually being lighter, more compact, faster and better for video; but that comes at the cost of access to fewer lenses and accessories. For DSLRs, advantages include a wider selection of lenses, generally better optical viewfinders and much better battery life.
Top 8 Mirrorless Cameras in 2020
- Sony a7III.
- Fujifilm X-T3.
- Sony a7R IV.
- Nikon Z6.
- Canon EOS RP.
- Fujifilm X-T30.
- Sony a6600.
- Olympus OM-D E-M10 Mark III.
With the EOS RP you can't. The fact that you miss this eye autofocus button option is the biggest issue I have with the EOS RP, but this could be fixed via firmware.
