Customer Ratings & Reviews

The Canon EF-EOS R Lens Mount Adapter is an essential accessory for photographers transitioning to the EOS R system without having to abandon their existing EF and EF-S lenses. This adapter facilitates seamless integration of older lenses with the new mirrorless technology, maintaining image quality and autofocus speed without compromise. Its sturdy construction and precise fit ensure a secure connection between camera and lens, while full compatibility with Canon's extensive lens lineup offers a flexible and cost-effective solution for photographers wishing to continue using their current equipment. In short, the Canon EF-EOS R Adapter is a must-have for any Canon photographer making the leap to mirrorless without wanting to compromise.

i love this adapter!! my lenses fits so well using this adapter on my canon r6 which i also love! i totally recommend this purchase.

****Works great, not much to add. Just an adapter.****

This adapter makes using your legacy Canon EF lenses seamless on an R6, R5 or other mirrorless Canon body. The only difference you will notice is that the lenses are slightly longer, but there is no difference in performance or sharpness. It is an essential piece of kit for those making the transition from DSLR’s to mirrorless, or those who want to use both kinds of cameras and keep their lens lineup.

Excellent build quality. It fits perfectly between EF-S/ EF lenses and RF port with all the functions of native RF lenses. The fit between lens and the adapter is not too tight or too loose. I would recommend this adapter for the intended purpose.

Exactly what I needed for my canon m50 mark ii. I’m new to real estate photography and bought a wide angle lens without realizing it wasn’t compatible. This worked perfectly so that I could use my new lens with no issues! Pictures turn out clear.

I have used the EOS R for 10 days or so, I have over 3k exposures. I am switching from a 5d iv, I do not use it for video. Here are the things I like: -Great picture quality -Silent Shutter -Works with my 24-70 f2.8 II, 70-200 f2.8IS II and other lenses without a problem with the adapter. -Single point single shot Autofocus works great. -MOST of the time face detection with Eye detection works. -Ring on the adapter(Sold separately), I have set ut up for Aperture, I really like this even though the ring is a bit to close to the camera. -The FV mode is probably my favorite new feature. -Great battery life, not sure how they measure the battery life for the specs, but I am getting an average of 900 photos per charge. -Touch Screen as good as the 5d iv Things that I need to get used to -Touch and Drag autofocus -Multi-function bar, I have programmed it to ISO, left side ISO 100, right side ISO 3,600, it works. Things that need improvement: -Face Autofocus, it works great 90% of the time, but sometimes just decides that the hands or a chair are the face. -The touch and drag autofocus can be more responsive, meaning when I touch the screen while looking through the viewfinder the to change the focus point sometimes I need to swipe a few times to get to the point I want. I have tested different options, like mapping the screen to 1/4, to 1/2 to absolute and relative. It works but not as good as it could! -Bursts silent shooter. -More options to customize the buttons. For example, I would like to not only program the back button for Back Button Focus but to go to specify what type of autofocus (single/servo, single point or different areas, etc...) In conclusion, I am very happy with the EOS R and know that when Canon releases a firmware upgrade I will be really really happy with the camera!

I have a bunch of EF lenses that needed to mount to the RF body. This adapter lets me do that. This adapter doesn't have the control ring, but if you want to same money, that shouldn't mater. I ended up upgrading to the control ring adapter a few days later just in case I want to use that feature later.

This helps of you have older EF lenses. It will help with a more modern RF mirrorless camera

Great tool. Been very essential in my photography arsenal. Use this on all of my shoots since I have a RF camera using EF lenses.

I am using for my new EOS r6 mark ii. My older lens works perfect without any hassle. Autofocus works well too and fits well. No complaints!

There's always the temptation to buy the third party brand items but Ive never had a problem when buying authentic Canon and this item has been no different.

Love the ease of this adapter. Haven't had issues with my ef lenses and this adapter for my mirrorless. Definitely recommend!

The Canon EF-EOS R adapter is an absolute lifesaver, especially for those looking to upgrade their camera body without the hefty cost of new lenses. It flawlessly connects my existing EF lenses to my EOS R series camera, preserving the image quality superbly. It's a smart investment that has saved me a significant amount of money. If you're planning to upgrade your Canon camera, this adapter is a must-include in your budget. It's reliable, efficient, and ensures a seamless transition to newer camera models. Highly recommended!

Allows us to use our old lenses so we’re happy. The added length isn’t an issue. This allows us to consider other EF lenses like the zoom lenses that are cheaper than their RF counterparts.

I’ve been using this adapter to mount my EF lenses on my EOS R camera, and it works really well. Autofocus is fast and accurate, and image quality doesn’t seem to be affected at all. The build feels solid and secure, so I don’t worry about my lenses.

works great with my Sigma m, happy for my purchase.

I wasn’t sure how I was going to use my old lenses but this adapter works really well I have not had a problem since having it!

Perfect exactly what I needed. Use it frequently and it has been amazing.

I placed this adapter on my 500mm mkll and attached my r6 and the adaptation began. Great experience, works as described. I couldn’t ask for anything better to combine my new camera to an ef lens. Focus is fast and spot on. This adapter fit both camera and lens perfectly. Canon hit this one out of the park.