Customer Ratings & Reviews

This adapter gives new life to your old EF lenses. On a mirrorless system the auto focus works even faster than before. RF lenses are limited and expensive. The adapter is the perfect solution until the next RF lens comes along.

This works great and allows me to use my older Canon lenses. I have so many lenses I have two of these to use with both my mirror-less cameras. Easy to use.

A must if you plan to use your ef canon lenses on the new eos r series canon cameras . Planing to purchase canon mirror less camera . It’s hard to purchase as it is always not in stock at BB . Just always look on line for availability , as they sell fast . As online reviews stated this is the best adaptor to the eos r series cameras .

Haven't used much but works as expected when needed

Must have if you are transitioning from dslr to RF system. I’d skip the gimmicky control ring adapter and get this plain Jane one for 100 bucks. Every lens I’ve adapted has worked seamlessly and autofocus is super snappy.

This adapter works great, so of the cheaper 3rd party adapters don't fit as well, it's worth the extra few dollars for the Canon brand adapter

must have for ef lens and highly recommend native brand

Super easy. Doesn’t take up a lot of space. I was surprised to find it also comes with its own little case to keep it in when you’re not using it too!

Perfect for using non RF lenses on a mirror less from Canon. Works seamlessly and is perfectly compatible. I’m currusing this mount to connect my non RF prime lens 50mm to my R8 and the results are great.

This is PERFECT for my older lenses. I did not have to buy the rediculous priced RF lenses and my old lenses work even better with this adaprot and the R8

Works great! Thanks for the awesome service! This adapter was a seamless transition from one lens to my others and fit camera perfect!

Great add on I was afraid of purchasing the new camera because all the lens I already have. The lens adapter worked great. I can use all my old lens without any problem.

I returned this only because I found the one that was lost… someone found it and turned it into the venues lost and found. But I use this adapter for the EF 135mm that isn’t on RF yet. I’ve tried other 3rd party brands and it’s not worth it.

I just transitioned from the Canon M5 mirrorless to the Canon RP, so this works great with the lenses I currently own. No need to purchase any new R lenses.

Adapter works way better then expected. Thought it would be a horrible experience like adapters are with sony mirrorless. However this adapter makes canon ef glass focus just as fast as native rf lenses do from the lenses I've tested. This also makes ef lenses focus faster on the rp then canons DSLR in my experience. Highly recommend this adapter.

Very high quality converter. I am so glad I found this item as now I no longer have to invest over a $2,000 In a new mirroless lens. 10/10

I had to buy this mount to be able to use my collection of EF lenses when I bought the R5. Compared to the RF counterpart lens that I have tried and experimented, personally the EF+mount combination is not as good in many fronts. Having made the switch to mirrorless, I don't think I would ever go back to DSLR, so eventually I would be looking into slowly replacing into RF lenses. For anyone who is deeply invested in EF lenses like myself, this is of course a quick and cheap solution for the mirrorless transition, but if not, I would consider purchasing RF lenses even though they are almost twice as expensive as their EF counterparts.

Exactly what we needed. High quality lens adapter that works exactly as intended

I love this adapter I can use all my lenses on my new rp camera and it’s the best thing I ever bought!!!

These are in short supply at least in early 2021. Make sure you have a reliable line on one if you expect to use your R-mount camera with older lenses, otherwise you'll be like me with a very expensive brick waiting for the adapter to arrive so you can start taking pictures! I paid for expedited shipping and Best Buy waited 2 weeks to ship it anyway. But that's a comment on Best Buy and not the item. The adapter is sturdy- I've been using it with a 150-600mm lens and no droop or light leaks. The only reason I give it "Average" value is because there are no optics in it, it is just a spacer for the EF lenses with electrical pass-through and no particular weather sealing. But once you drop $2k on a camera I guess canon figures you won't blink at $100 for an adapter like this.