Commlite CM-EF-EOS R Lens Adapter, Electronic Auto-Focus EF to R Mount Adapter for Canon EF/EF-S Lens to EOS R, EOS RP, EOS R6, EOS R5 Series Mirrorless Cameras

functions flawlessly so far with all of my ef lenses. can use autofocus and image stabilization on lenses no issue.

Great purchase! Less than the name brand one and works perfectly on my r50.

Pretty solid adapter. High quality and connect pretty well. No issue when I use 24-105 ef lens with mirrowless camera.

This adapter is built like a tank and works perfectly on my Canon M50 with EF lenses. I've also tried it with an EF-S lens, and while it functions OK, the auto focus seems to constantly be searching for the right focal point. I tried it on several settings and turned off the continuous autofocus in the M50 body, but the lens still constantly tries to adjust focus. If I switch to manual focus, the works perfectly. Ironically, the best performance I've had is with my oldest lens -- an 75-300 mm EF lens that I originally purchased for an EOS Rebel SLR (film camera) about 25 years ago. I used it to shoot my daughter's soccer game, and it performed like a champ. So if you have a Canon mirrorless camera, here's my advice for rounding out your lens collection -- buy this adapter and then buy a bunch of older EF lenses. You'll be able to build quite a collection of gear for less than the price of one EF-M lens. HOWEVER, if you're planning to do video, the EF-M lenses with the STM motor are very nice. They're very lightweight, smooth as butter and nearly silent. The only drawback is that they're a little "plasticy" and don't feel as solidly built as this lens adapter.

Bought it for a R50v and its a perfect fit. Does not move or let in light...works as described with full function on electronic connections. No issues with lens auto focus or face tracking.

This adapter works great for my Canon R10 to be able to use my DSLR lens. It’s snug and holds the lenses well. I was a little worried using a third party aftermarket product but it works so well and is much cheaper than the one Canon offers. I highly recommend it.

Working excellent on my canon R50

Initially I had no problems with the adapter. All my EF lenses worked great, including my Canon and Tokina lenses. However, as of today 6/21/21, the same lenses that I've been using without issue don't sit properly on the adapter. The consequence of which is that the lenses loose autofocus, the camera reads a f/stop of 00 and then the camera will read an error message Err-01 lens not attached - which causes the camera to shut down and restart. It happens with every single one of my EF lenses, all which work perfectly fine on my Canon 5Diii. Tested the RF 24-70mm on the R5 and had no issues. There is noticeable play/give at the attach point on the adapter with the EF lenses. You can wiggle the lenses up and down about 2mm. I just shot a graduation and using the light-weight Canon 50mm EF caused the camera to think that no lens was connected. Every time I swung the camera up to my eye to frame my shot, the lens would "disconnect" loose autofocus, and/or restart the camera. When using my Tokina 16-28mm lens, there is a ring of light visible on the image regardless of the light source or angle. Apparently others have experienced something similar, which is apparently the metal reflecting light directly onto the sensor. Yikes. 10/10 do not recommend. It's cheap, yes. It's all that's available, yes. But there has to be something better while Canon plays catchup with their supply line.

正直純正品ではないので、本当に大丈夫かと半信半疑で購入してみましたが、全く問題ありません。ガタとか接触不良なども今のところ皆無で満足してます。

Firstly I should really appreciate the quality of the product. It's awesome. It perfectly fits to my Canon EOS M200 camera with EF-S lens. The expectation is met. This product justified my every penny. Thank you.

Acheté pour mon Canon R5 pour monter mon parc objectif EF-S. Fait très bien le travail. Satisfait.

Excellent works really well

Útil demais e de excelente qualidade. Gostei!