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 Mount Adapter EF-EOS R

Ratings & Reviews for Canon Mount Adapter EF-EOS R

4.8
80
Review
 4.8 out of 5
80 Reviews


97% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this adapter for enabling seamless use of existing lenses on newer mirrorless camera bodies. Reviewers consistently highlight flawless autofocus performance, improved focus speed, and no loss in image sharpness. The solid construction, precise fit, and durable materials earn frequent commendation, with customers noting a stable, vibration-free connection even with heavy lenses. Many emphasize exceptional value by eliminating the need to replace entire lens collections when upgrading systems. A few report isolated issues like slight wobble or compatibility limitations with certain third-party lenses, but these rare concerns do not diminish the overwhelmingly positive consensus that this adapter is a smart, reliable choice.

Customer review summary generated by AI, including incentivized reviews.
80 Customer Reviews

Great Purchase!

Would Recommend

I have been using the mount to convert my EF 75-300mm lens for my R50 body, and it's been a seamless transition. Can't recommend enough!!! Worth the money.

August 6, 2026

From canon.com

EF to RF Adapter

Would Recommend

Works as advertised. It does the job. I had no trouble using this product

May 16, 2026

From canon.com

Totally Appreciated.

Would Recommend

I am pleased to have purchased this adapter for it provided the opportunity of utilizing the many EOS L lenses purchased.

April 8, 2026

From canon.com

nice

Would Recommend

I love the new R6 Mark II and the adaptor allows me to use the Canon lenses that I have invested in over the years for my other Canon EOS cameras...

September 9, 2025

From canon.com

Love this piece!

Would Recommend

Decent price for just the adapter, love the versatility it adds to EOS R camera line, being able to use the high-quality EF lens I have on this camera is absolutely amazing!

May 30, 2025

From canon.com

Works great

Would Recommend

Works perfectly, I just wish it wasnt so long but I understand they had a reason.

December 18, 2024

From canon.com

Great adaptor.

Would Recommend

Well made. Great interface between the EOS lenses and R Bodies. I have one on my R and my R5.

November 25, 2024

From canon.com

Ref Mount Adapter EF-EOS R

Would Recommend

Refurbished product but works great. Item is in great shape

September 12, 2024

From canon.com

EF to R lens adapter - OK EF, not Tamron

A mount adapter that permits long-tern Canon camera users to use those EF lens's, some that are excellent and quite expensive, with your new R5 camera body. A simple job to do, and it seems to work OK with my EF lens, but my nice Tamron ultra-wide angle lens is not usable due to strong vignetting.

June 8, 2024

From canon.com

Works fine

Would Recommend

I was gifted an R7 to replace my 77D. I don't have the funds currently to buy new lenses so I bought the adapter so that I could use what I have. I haven't used it much, shot some wildlife photos while on vacation. It worked fine for that.

January 4, 2024

From canon.com

Rf-Ef adapter

Would Recommend

Easy to use. Works as it should. Allows me to use my EF glass on my R50

January 3, 2024

From canon.com

Keep your current lens collection, upgrade to mirrorless

Would Recommend

Once you align the correct dots, it fits snug and secure.

November 2, 2023

From canon.com

Excellent adapter for older EF/EF-S glass

Would Recommend

I had hoped to be able to get all new RF lenses but was unable to before a trip and so I ordered the basic adapter and used it with a Sigma 18-300mm EF-S lens on the trip with excellent results. The adapter and EOS RP body gave excellent sharpness and colors. Sharpness was better that I have ever achieved on a T2i and 77D. Now I may look to get some good EF lenses to use with the adapter but I love the 2 RF lenses I have purchased so I get the best of both worlds.

August 16, 2023

From canon.com

Solid customer support

Would Recommend

Great buying experience with the product representative. The rep was also knowledgeable of the product offerings.

August 14, 2023

From canon.com

Happy Customer

Works Great fits camera and does what I want it to do

July 22, 2023

From canon.com

Good deal

Would Recommend

Works well with all my EF lenses. The overall camera length is then about the same as if they mounted on my old SLRs.

July 13, 2023

From canon.com

EF to R lens adapter

Would Recommend

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).

July 6, 2023

From canon.com

Could be better

Would Not Recommend

Seems a little difficult to go on my camera. I have tried several times and each time is the same.

June 10, 2023

From canon.com

It just works... essential for my switch to mirrorless

Would Recommend

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.

May 14, 2023

From canon.com

Adaptor

This adapter is very light and easy to use. holds EF lenses easily

May 13, 2023

From canon.com