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Canon Mount Adapter EF-EOS R

  • mfr: 2971C002
  • SKU: 2971C002
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Product highlights

  • Allows EF/EF-S lens compatibility with the EOS R camera
  • Exterior design matched to EF lenses
  • Dust and water-resistant
  • Metal mount on both lens and camera sides

Canon Mount Adapter EF-EOS R

The Canon Mount Adapter EF-EOS R gives you the ability to utilize any Canon EF or EF-S lens with the EOS R camera, letting you use your existing lenses with the camera and allowing you to expand your horizons. Lightweight, compact and easy to attach, the Mount Adapter EF-EOS R makes it possible to use EF and EF-S lenses without compromising functionality, speed or quality. With a stylish design that matches the EF and EF-S lens look and a sturdy, dust- and water-resistant construction, the Mount Adapter EF-EOS R makes it easy to adapt to more lens choices and possibilities.

Specifications

Main
Converts From Canon EF
Configuration Core
Color Black

Questions

Customer Questions
No Questions

Returns

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You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage. 
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We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
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If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

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Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

Canon Mount Adapter EF-EOS R

Canon Mount Adapter EF-EOS R SKU: 2971C002

Rated 5 out of 5 by from Solid customer support Great buying experience with the product representative. The rep was also knowledgeable of the product offerings.
Date published: 2023-08-14
Rated 5 out of 5 by from Happy Customer Works Great fits camera and does what I want it to do
Date published: 2023-07-22
Rated 5 out of 5 by from Good deal Works well with all my EF lenses. The overall camera length is then about the same as if they mounted on my old SLRs.
Date published: 2023-07-13
Rated 4 out of 5 by from EF to R lens adapter Works flawlessly. Excellent fit/finish - like a part of the camera, not an attachment. Only thing missing is tripod mount (like the EF-M adapter would be great).
Date published: 2023-07-06
Rated 3 out of 5 by from Could be better Seems a little difficult to go on my camera. I have tried several times and each time is the same.
Date published: 2023-06-10
Rated 5 out of 5 by from It just works... essential for my switch to mirrorless Whoever in Canon came up with the concept for these adapters deserves a promotion. It has allowed me to keep utilizing my "investment" of Canon lenses. It is easy to use and it just works.
Date published: 2023-05-14
Rated 5 out of 5 by from Adaptor This adapter is very light and easy to use. holds EF lenses easily
Date published: 2023-05-13
Rated 5 out of 5 by from Mount Adapter EF-EOS R Works as expected! Fits my EF lenses perfectly on my new R6 Mk II camera.
Date published: 2023-05-02
Rated 5 out of 5 by from Works Great Works just fine. Have had no problems at all! Does what it's supposed to do.
Date published: 2023-04-16
Rated 5 out of 5 by from no title works great, works with all my ef lenses, price a little high
Date published: 2022-06-05
Rated 5 out of 5 by from Very Solid Very solid adapter with no play in the connection even with a EF 100-400mm Ii lens. Auto focus is very fast
Date published: 2022-05-16
Rated 5 out of 5 by from Excellent Product Works like a dream. Allows the use of my existing EF lenses on the EOS RP.
Date published: 2022-02-20
Rated 5 out of 5 by from Less expensive than converting to all RF lenses Allows me to use my existing EF lenses with the Canon EOS R camera. Makes the transfer to mirrorless much less expensive
Date published: 2022-01-28
Rated 5 out of 5 by from Perfect! Works FLAWLESSLY, in fact all my EF lenses shoot better than ever with this adapter and my R6!! 100% recommend!
Date published: 2022-01-17
Rated 5 out of 5 by from Perfect Adapter Solid attachment to my R6 and lenses! Have used multiple lenses without a problem.
Date published: 2022-01-01
Rated 5 out of 5 by from Solid feel and construction. I purchased this adapter after having issues with an adapter my local camera shop sold me to connect my new camera with older glass. The other adapter worked fine for about two or three weeks but after using that adapter on the daily, the lens and the camera had trouble talking to each other. I could feel a wobble, loose connection between the lens and the camera, when I held the camera on it's back and slightly wiggled the body, the lens would rock a tiny bit, causing the lens and the camera connection to break contact slightly. After purchasing the Canon Mount adapter, the connection felt strong, no wiggle. I have not used the new adapter on the daily for more than two weeks because my new lens arrived and my need for the adapter wasn't necessary. To be fair, I had the original adapter on the camera 100% of the time, with the lens attached constantly. After all, why would I disconnect the lens adapted when I expected to use the exact same setup the next time I needed the camera for a shoot? With gear stuffed into the bag and transported to different locations daily, the treatment wasn't gentle, but not rough. I expected the adapted to be able to withstand daily use. The Cannon adapter seems much more solidly built. I wish I could report the canon adapter stood up to constant abuse, but with my new lens, RF 14-35mm, the adapter is just not as neccessary. But I do feel much more confident having the Canon mount adapter in my bag.
Date published: 2021-11-20
Rated 5 out of 5 by from R Mount Works well with EF Lenses R Mount to EF works Great. Ive had no problems at all.
Date published: 2021-11-17
Rated 5 out of 5 by from Great Product Works amazing and even came with a nice carrying case.
Date published: 2021-11-10
Rated 5 out of 5 by from Must have accessory Nice tight secure fit, all my old lenses work as they should and some of them actually focusing better through the new EOS R body.
Date published: 2021-11-07
Rated 5 out of 5 by from A+++ Works as EXPECTED! Works as expected, no issues connecting or operating my entire Canon owned lenses
Date published: 2021-11-02
Rated 5 out of 5 by from Worth Waiting For Well made product, as expected from Canon for one of their premier cameras. I'm happy I didn't give up and purchase a 3rd party adapter. This one fits perfectly and tightly, just as it needs to do to hold some of the heavier lenses. Thank you Canon!
Date published: 2021-09-28
Rated 5 out of 5 by from Ef-RF System It works,will use it till I upgrade to the RF Lenses
Date published: 2021-09-27
Rated 5 out of 5 by from Expand your R5 lenses to include EOS Lenses Great adapter! Allows me to use all my EOS lenses on my R5
Date published: 2021-09-25
Rated 5 out of 5 by from Excellent After seeing so many bad reviews of the third party lens adapters for the EOS R5, it was a no brainer to purchase the Canon adapter. In the past I have always purchased Canon brand accessories and have never had a single complaint. The adapter fits perfectly. It fits tight but, not too tight. No problems with connection to the lens, no focusing issues at all.
Date published: 2021-09-25
Rated 5 out of 5 by from Go with Original Canon Equipment Definitely if you need the EF adapter for your R camera (mine is an R5) you need to stay with the Canon version. Don't skimp on the adapter since your lens is way more costly as is your camera.
Date published: 2021-09-23
Rated 5 out of 5 by from EF to R6 made easy Not really much to say about this, does an excellent job connecting my old EF lenses to my new R6 body. The only thing I wish it could do and it may well be a firmware issue in the R6, please give me the 12 frames per second.
Date published: 2021-09-06
Rated 5 out of 5 by from Get this and use your old EF lens Got a new R series camera, Get this and use your old EF lens
Date published: 2021-09-03
Rated 5 out of 5 by from Great adapter Works as advertised and happy to use my old ef lenses until I can upgrade to new rf glass.
Date published: 2021-07-21
Rated 5 out of 5 by from Adapter for ef lens to r6 and r5 cameras This adapter allows all IQ to work from the camera to the lens. It is fast reliable and most important you can use your ef lens on an r6 and r5 camera.
Date published: 2021-07-20
Rated 5 out of 5 by from Money Saver The EF to EOS R adapter is great. I can use the lens I currently own while I save money to get better lenses.
Date published: 2021-07-20
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