Canon Mount Adapter EF-EOS R (New)

I love the new R6 Mark II and the adaptor allows me to use the Canon lenses that I have invested in over the years for my other Canon EOS cameras...

I am pleased to have purchased this adapter for it provided the opportunity of utilizing the many EOS L lenses purchased.

Does a fine job and was a free add-on. I haven't missed the "manual ring" so happy I didn't spend more, nor did I want to mess with filters behind the lenses as the other pricier choice. Yes it adds a little weight but doesn't effect the autofocus like extension tubes with my telephoto zooms so I'm happy with it. Since I shoot with the EOS R only when need silent mode and use my EOS 5 for other situations there is need for only one adapter ring.

Well made product, as expected from Canon for one of their premier cameras. I'm happy I didn't give up and purchase a 3rd party adapter. This one fits perfectly and tightly, just as it needs to do to hold some of the heavier lenses. Thank you Canon!

This works great with my EF lenses, and except for the added length they feel like native RF glass. The only lens I felt compelled to replace was the V1 of the 70-200 IS 2.8 L - because the RF version is lighter and shorter and sharper (and the adapter makes the EF even more front heavy). Since I am currently using a 5d IV for a backup this will allow me to use the rest of my lenses until I jump into mirrorless with both feet.

Decent price for just the adapter, love the versatility it adds to EOS R camera line, being able to use the high-quality EF lens I have on this camera is absolutely amazing!

Definitely if you need the EF adapter for your R camera (mine is an R5) you need to stay with the Canon version. Don't skimp on the adapter since your lens is way more costly as is your camera.

It allows you to adapt your lenses There is no loss of quality I have seen. I get more Chromatic Aberration with familiar lenses than I have seen before but I think that is the camera not the adapter

Works SO well on my EOS R. I was worried about using ANY adapter between a premium body and a premium lens like my 70-200 f2.8 IS iii... but it performs the exact function it should, and it does it perfectly.

Simple to use, well made, works as described. The adaptor enables me to use a couple EF lenses on my new Canon RP, and helps me while I bridge to all RF lenses in the future. Canon quality makes is fun to use.