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This item is eligible for return within 30 days of receipt
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Availability:
In Stock.
Arrives
Tuesday, Sep 23
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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:
Tuesday, Sep 23
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
Using on an R6 with multiple zoom and prime lenses and everything works perfect, focus just as fast and accurate. Only tried with Canaon lenses
Reviewed in the United States on July 8, 2025 by mikepos
Adapted all my Canon L Glass to a new Canon Mirrorless.. Works Great ! Saved me a ton of money too.
Reviewed in the United States on May 21, 2025 by The Concrete Cowboy
Love this adapter. I wanted to go out of my way and get the more expensive option for the lens adapter when getting my Canon R5 to use my L series EF lenses. The performance is awesome and the added control ring feature (completely customizable) is AWESOME. I know it's pricey guys, but if you're going to be using EF lenses on your RF mount, just do yourself a favor and get the best quality option so you can at least have the closest thing to an actual RF lens. If it's not necessary for you, I get it, but I have so many friends who use off brand adapters, and it just ruins the performance of the lenses. Not to mention, this adapter looks so DOPE on my R5... it doesn't even feel like I'm using an adapter, it genuinely feels like an extension of my camera! :)
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Reviewed in the United States on February 24, 2024 by KalebThurman
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 Lynn Chanel
I got this to adapt my older EF lenses to my EOS R6 and R5. And while it works, I am finding that I have no real use for the control ring, as both those cameras have three adjustment wheels instead of the usual 2. My plan was to use the ring for ISO control, but I can just use the third dial on the back of either camera to do so. I set it to use exposure compensation instead, and do not like that I have to be metering in order to adjust it, meaning I have to be holding in the shutter release or BBF or it will do nothing. I know some that use it to switch AF modes, but I find that I can cycle the modes just fine with the multi-button by the shutter. Really, I probably could have saved the money and just got the basic adapter that has no control ring. I will say the build quality is very good, and I don’t notice any kind of loss in AF speed or performance. If anything, all my older lenses, even the third party lenses by Sigma and Tamron, perform at least as well on my R6 and R5 with this adapter, and in the case of the third party lenses, it seems the AF is more accurate than they were on my older DSLR bodies. If you want spot on AF even with adapted lenses, mirrorless is the way to go. But you don’t have to get the control ring adapter for twice the price though if you have an R5 or R6, as they have enough built in controls. You can just use the Basic adapter, unless you really just want that additional control. Same goes for future releases that have at least three adjustment dials on them, like the R3 and R1. Of note, if you have the older R or RP cameras, or the new R7 or R10 APS-C cameras, then the ring is a bit more useful, since they lack the same amount of controls the more expensive cameras have (only 2 adjustment dials). So if you have one of those cameras, or possibly a future release that also lacks additional dial, it might be worth the additional cost. Or if you just want the additional dial that is fine too. It can be programed to use functions other than ISO and EV.
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Reviewed in the United States on November 25, 2020 by Wigged Out Fat Guy
I recently had to upgrade from a Canon 5D Mark II to a Canon Eos R5. Since I was strapped for cash and couldn’t buy new lenses along with the new camera body I bought this mount adapter to use with my old EF lenses. It’s small enough that it doesn’t add much weight, but it mounts securely and easily and seems very durable. My focus still works well with it. I haven’t had any issues with its stability at all. I’m very happy with this purchase as it helped me make the leap to a new camera without coating a fortune.
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Reviewed in the United States on May 15, 2024 by The Last Boy Scout
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
This review is for "Canon Mount Adapter EF - EOS R, Compatible with EOS RP, EOS R, EOS R6, EOS R5" It works flawlessly with all my Canon EF lenses, old or new! I'm using it with new Canon EOS R7. At $200 plus tax, it's more expensive than the cheapest adapter that can do a similar job but without the control ring. There is a Canon brand adapter at $100 without the control ring. Canon Brand adapters, while it is the best guarantee for the maximum compatibility with Canon lenses (I don't own anything other than lenses) they are about double the price of the after market adapters out there.
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Reviewed in the United States on January 23, 2025 by Bill E.