Customer Ratings & Reviews

Good adapter, the control ring clicks are good for control, nice for smaller lenses, however for big telephoto lenses it will be far from your hands on the zoom or focus rings, and on the R3 its a bit too close to the body, and you already have 3 control wheels, but still its a nice addition.

There’s a splendid addition to the mirror camera I got my wife

Bought this adapter for the sigma 35 mm to go on my Canon R! Does what it’s meant to do!! It’s a necessity to have on the for the R series body with the EF lenses.

Works perfect . Sturdy no complaints . Would buy again

I bought this like 1 month ago i think and it was great for trying with ef lenses, it worked perfectly, is a little bit expensive since is for RF cameras but worthy.

The EF adapter is a great way to be able to use EF lenses with my new Canon R7.

Works well enough, BUT the control ring is NOT supported by all R models. It is useless on my R100. I’m going to keep it anyway as I plan to upgrade to an R5 this year but double check the compatibility of the ring with your particular model before spending the extra beyond the regular adapter.

Canon brand products are always good but pricey… works fine.

Works flawlessly with canon RF lens. Also worked well with the Sigma macro. Worth the $$

I had just upgraded to an eos R5 after having my older Canon DSLR. I had invested in multiple high quality lenses with that camera including a telephoto, wide angle, and portrait lenses. Therefore having an adapter was crucial so that I didn't have to invest in a completely new set of lenses. This did the trick. Works prefectly with my previous Canon lenses. No hiccups. Having the control ring is also useful as you can link it to any parameter of the camera you want. I hsve it currently attached to my shutter speed. Great accessory to keep your old equipment alive and modernize it.

it has been extremely hard to find any EF-to RF mount adapters lately and BestBuy was the only place to find this adapter without an unspecified shipment date. So I ordered here. The positive: It does what it is supposed to do. Connection to my EOS RP was a little stiff, very tight. The lens side was less stiff. Now I can use my ef and ef-s type lenses on my Eos Rp. I wanted to get the extra control ring to speed up settings adjustment with the manual mode. The camera already has 2 control wheels... So it feels a little redundant unless you shoot at M mode or need one extra control ring. I don't think you will regret getting the cheaper model if you are a hobbyist.

An absolute must if you’re already married into the Ef eco system, there is the cheaper adapter ring but with that you lose the ring control settings that is new to the RF gear Can also confirm what you’ll read in a lot of places, all my Ef L glass seems to respond better paired up to my R6 than it did on the old bodies Was a must have for my kit

High quality, this is a lifetime one purchase item. Canon engineered this adapter to the highest standards possible. Thus saving me money and allowing me to continue using and enjoying my EF glass on Canon RF mount cameras. I highly recommend this adapter with the control ring that allows me to use many of the Canon EOS R features with my EF mount glass.

I haven’t had a lot of time to use this item, but when I tested it, it took great photos with my existing Canon lenses.

Works great. It doesn't add a lot of length to my lenses. I appreciate that I don't have to repurchase thousands of dollars worth of lenses for the new mirrorless mount. There have been no connectivity problems and the automatic functions on my lenses work as if they are directly connected to the camera. No focus issues. I went from a 7D Mark II to a 7R. The biggest concern is remembering to move the adapter when I change lenses because I forget it's there.

This is the perfect companion for using your EF Lenses on your Canon R5 Camera. Lenses fit perfect to the adapter and the adapter fits nicely on the camera and the control ring controls any item you want to program into it. Great item.

I love that this has a control ring but it’s kind of in an awkward position. No issues with my R6 MKII functions beautifully. Would buy again

I’ve been able to use my EF lenses on an R5 without any noticeable loss in performance or image quality. This is a definite winner if you need or want the addition of the control ring. This adapter is a no-brainer for anyone who owns a collection of EF lenses.

This adapter is perfect. If you can't decide to get this or the cheaper one without the control ring, get this one, the control ring is fabulous. I use it to control Kelvin and it makes these little adjustments much easier.

With this adapter, you can upgrade to canon R cameras, and still use your existing ef lenses. The lenses work as good as or better than when used with ef mount cameras. The control ring in this model can be set to many different functions. Made by canon, the quality is up to canon standards.