Canon Mount Adapter EF - EOS R, Compatible with EOS RP, EOS R, EOS R6, EOS R5

Control ring not need. Just buy adapter and save yourself $

Having the control ring adds an additional amount of control. Being really "old school" from the days when the aperture was controlled by a similar ring on a lens, brings back a bit of nostalgia along with an additional way to control the camera.

Nice to be able to use my old lense with the new camera.

So easy to use. Allows me to adapt all my EF lenses to my new R6 camera body saving me from having to re-purchase. A must if upgrading to the R-series mirror less.

A Simple tool that lets you use your EF lens! Works well added to my new R6 MII this combo has brought new life to my EF lens.

This ring becomes an extension of the R camera body and provides full functionality for EF Canon and third party lenses, my old Tamron zoom behaves and focuses perfectly now, which it never did on the 80D!

Able to use the control mount to utilize my EFS lenses and in the long run save money. Control ring can easily be added and removed!

Nice to be able to easily change exposure compensation

As a Canon film SLR user from 1968 to 2003 and then a Canon DSLR user until August 2022. when I got my R7, I really appreciate that the Control Ring on RF lenses lets me set the f/stop on the lens like with my film SLR - amd this adapter lets me do that with my EF lenses as well. I set shutter speed with the main dial on the top deck and run in Manual exposure with the histogram in the viewfinder, and I'm home.

I got this at the same time I went from the Rebel t7 to the EOS R8. I love that I did not have to go and get an entire new collection of lenses for my new camera. my only critique is that it makes the manual focus on my EF 50mm lens a bit buggy. Otherwise it works great and has been worth every penny.

Does the job of allowing my EF lens to my new R3. Quality build that fits more than snug. Very Happy !!

It works great with all my EF lenses that I have tried with it, including my non-Canon (a Sigma 150-600). I highly recommend this more expensive version with the optional new ring added to the RF lenses that can be programmed to specific camera functions. I use it for the exposure (the EV+/-) adjustment and I love being able to see the effect instantly while looking through the viewfinder. This is especially helpful with the mirrorless cameras because you can see the effect in the viewfinder LCD.

Works perfectly to mount your older lenses on your new RF body plus adding the contorl ring feature. This is the adaptor to have.

very rigid and holds on to the large barrel telephoto lenses.

Love the Control Ring. You can program it for White Balance or Aperture etc. Great Product!

Allows me to use my EF lens and my astrophotography gear that I had bought for my SL3. Gives me a lot of flexibility in using my existing gear.

This adapter makes using EF lenses of R series cameras effortless Basically, it's just a metal ring that moves the lens a bit away from the image sensor so it focuses properly with the correct focal length. Doesn't even have--or need--optics. But it is very well-constructed with precision and quality finish you won't find in third-party adapters. The control ring on this model is a nice addition as it adds extra functionality EF lenses lack on their own. How often do adapters ADD features with zero reduction in functionality? And it doesn't add excessive weight or bulk to the setup. A great purchase!

I recently bought this & it doesn’t fit my canon eos m50 which adapter would I most like need & for it to fit my 75-300mm lens

It does exactly what I need, allow me to use some EF glass with my R5 and R6. I bought the Control Ring version, because I didn't know I would regret not having it. The issue I have found it I am not using the ring. It's in a different place for each lens and this ring, so that means avoiding it. If I did it again I would buy the cheaper version without the ring.

Adapts my EF lenses to my mirrorless wonderfully. Works well for non-Canon brand lenses as well. Made it easier to get into mirrorless knowing I wouldn't have to buy all new lenses. Control ring gives you some alternative options for changing settings which is nice.