Customer Ratings & Reviews

Amazing Product! Upgraded to a mirrorless camera, and this allows me to use my Ef lenses flawlessly!

Good value if you only need the basic extender. This worked great with my EF lenses.

Got an EOS R for personal uses but since I also use canon professional, I grabbed this adapter to use my other lenses as well. It worked seamlessly and makes the value in having mirrorless and full frame even more!

A must have if you upgraded to the EOS R and want to use your old EF glass

Upgraded the wife to a R6 and didn’t know they changed the mounting layout for canon lenses with the new generation. This adapter allowed us to use her old expensive lens without losing any quality of photo.

Was easily able to convert over to my mirrorless Canon camera without having to buy all new lenses for my EOS R6. All the lenses are maintained the same picture quality if not better.

You probably need this as the RF lens selection is pretty sparse / expensive. Works flawlessly, have adapted a few different lenses from the nifty fifty to big lenses like the 70-200 f2.8, focusing is instant, IS works as well as on the EF mount

I recently purchased the Canon EOS RP mirrorless camera body which included the Canon EF-EOS R Lens Mount Adapter. This allows me to use all of my Canon EF lenses with the RP body with no loss of functionality, or image quality. A really useful tool!

Thank you canon for making this adapter. Works flawlessly with the older lens.

Its works with my old EF lens, some of them working better than with my 80D. There is a crop on some of the EF lens when using with the R5, just beware, saves a lot of money not having to upgrade to all new glass

I bought this to adapt lenses to an R5 MK2. I'm not impressed. I have 3 lenses I mostly use. An EF 16-35 II F2.8. That one is ok but I replaced it with the compatible 15-35 because of the IS. I have a 100-400 that performs poorly with this adapter. The lens IS doesn't work at all and I can't tell if the in camera one does. Third I have a 24-70 F2.8. This lens has not been used a lot and doesn't work at all with the adapter on the R5 MK2. I get an error o1 lens and camera not communicating clean contacts. The clean contacts message is ridiculous to begin with. Canon service described why and suggested service. Of course. This lens works perfectly with the 5D MK4 I purchased it for. I'd think about getting the more expensive adapter but so far I can't find anything telling me what is different about them.

I was afraid this was going to be bulky, but it's not bad at all! I barely remember it's there when I have it on my Canon R6. If you have ES lens with a mirrorless body, it's a must-have!

I live the able to use it on my new mirrorless camera

really great price for this mount. does the job and works great

Lens adapter works very nice with my EFS lens. I found zero fault with picture clarity.

Is as advertised, only problem couldn’t figure out how to use with manual lenses

All EF lenses work very well. My old 35 to 350 l lens works even better than on my other camera bodies.

Does exactly what I need it to do with no hassle .

Great for be able to use other lens. Opens up more products to be able to use

Great adapter to adapting EF lenses to the new EOS RP camera. The EF lenses works as if there’s no adapter on.