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Availability:
In Stock.
Arrives
Friday, Feb 13
Features
- Standard mount adapter allows EF/EF-S Lens compatibility with the EOS R camera system, including the EOS R, EOS RP, EOS R5, and EOS R6
- Built-in control ring provides quick access to camera functions
- Exterior design matched to EF lenses
- Dust- and water-resistant
- Metal mount on both Lens and camera sides provides rugged flexibility
Description
The new Canon standard mount Adapter allows for EF/EF-S lens compatibility with the new EOS R mirrorless Digital Camera system.
Product Dimensions: 2.9 x 2.9 x 0.9 inches
Item Weight: 4.6 ounces
Item model number: 2972C001
Is Discontinued By Manufacturer: No
Date First Available: September 4, 2018
Manufacturer: Canon Cameras US
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Feb 13
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Allows use of all your EF lenses on your RF mount camera. Seamless function, no degradation of image.
Reviewed in the United States on December 15, 2025 by Bryan B.
Nice adapter. Now I can save money on lenses without sacrificing too much if any quality. It's not that noticeable but looks good. It fits on camera perfect. The control ring is placed a little odd but still useful. I like to assign ISO to it. Saves time and money what more could you ask for?
Reviewed in the United States on November 28, 2025 by Mohan1
I’ve been using the Canon EOS to RF lens converter (EF-EOS R Mount Adapter) for a several months now, and it’s been an absolute blessing. As someone with a collection of high-quality EF glass, I wasn’t ready to part with my lenses when upgrading to a mirrorless camera (and I mean buying all new mirrorless lenses to replace them would be pretty pricy). This adapter made it so I didn’t have to!! The adapter works seamlessly. There’s no noticeable loss in image quality, autofocus remains fast and accurate, and all lens functions seem to carry right over . Using the old lenses on an mirrorless is actually a bit of an unexpected treat with the advanced functions of the newer camera. The only con I have is that it adds a bit of length to the build but otherwise totally worth the reasonable price.
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Reviewed in the United States on July 8, 2025 by LynnZ
For some reason I cannot find any third party full frame RF lenses, only for APS-C. This is the version for the latest R series cameras that not only provides access to the plethora of powerful OEM and third party full frame EF lenses, but also has a control ring like native R lenses for extra fuctionality like shortcut to changing aperture. I saw some expert YT reviews that said they tried this adapter out and successfully gives their EF lenses a second, and partly even better life. Note that there are numerous third party adapters of this kind on the market for literally a third of the price, but given the importance of this adapter working properly I rather spend the extra money to get max quality - plus, thse less expensive versions may or may not have the control ring. I can't wait to try out and buy top EF lenses that would otherwise be out of reach looking at Canon's high RF full frame lens prices they try everyone to buy.
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Reviewed in the United States on January 11, 2026 by svenf
Works great and ef lens fits seamlessly and adapter fits great on r mount camera
Reviewed in the United States on January 21, 2026 by George Nikas
Fantastic. Works great and lets me use all my EF lenses with my R5. Built solidly and works with no interference in photo quality. Highly recommend.
Reviewed in the United States on November 19, 2025 by Adam H
Works great for my 70-200 2.8 Like but not 24-105 L-- it fits but the lens is dark
Reviewed in the United States on May 16, 2025 by Soleil
Thanks to this adapter, I can use my EF 24mm f/1.4 lens on my Canon R50. The control ring is a game changer. I’m still learning how to take photos—the second photo was taken indoors at night with very low light.
Reviewed in the United States on January 10, 2026 by June June