FotasyFD Mount Lens to Cannon EOS RF Mount Adapter, FD EOS R Adapter, FD RF, FD FL Classic Manual Lense Adapter, Compatible with Canon EOS R Mirrorless Camera EOS R RP Ra R3 R5 R6 R7 R10

good quality, great value, perfect fit

This works perfectly with all my Canon FD lenses on the Canon EOS R50. There is no autofocus, no aperture, no zoom control. It is all manual. Perfectly functional and works very well with all lenses: 50mm 1.4, 70-210mm and 200mm. It is also nice that it is painted black, it is not visible when mounted on the camera, with different lens on. Read the little instruction insert, it contains very important info on how to setup your camera so it will take a picture even if it does not have a lens.You need to configure that in your camera or you will not be able to take pictures.Each camera is different, here is for Canon EOS R50:1. Menu.2. Camera3. 3rd Page4. Release Shutter w/o lens -> turn ONHighly recommended.

There were several choices for an FD to RF adapter. I have a bunch of older FD lenses (along with the cameras that use them). But prior to Canon moving from their long-time EF lens line to the newer RF lenses, there was no good way to use the FD lenses...Canon never made an adapter, and the third-party ones were meh. But with the RF lens and R camera bodies, the spacing problem that existed with EF lenses is gone. So, a simple, properly built, adapter allows FD lenses - in full manual mode only of course (both focus and aperture) - to be used with an R body. This adapter works great. It took me a few minutes to understand that I needed to loosen a small screw on one of the rings to allow me to move the lens aperture to whatever I set it at, but I've had some nice results with this so far. It was solid and worked well enough that I bought a second one within a week to just use with my FD lenses and a bellows system I have to extreme macros.

4 stars because I needed to remove the overtravel stop screw to make it fit on my camera. After removal it works great and my FD and FL lenses mount extremely securely. I haven't tried it with an nFD lens because I don't own any.As expected with an SLR to mirrorless adapter, it adds a bit of length to the lens which will make the camera a little more front-heavy, but not enough to make my camera unwieldy.I primarily use this to attach my FD 55mm f/1.2 SSC (non-aspherical because I'm not rich) to my EOS RP and for that purpose it is perfect. When locked on it basically feels like part of the lens.

I recently got an EOS R10 and was gifted some FD mount lenses to use with it. I picked this up since it was low cost and arrived fast and so far very pleased with it. Make sure the ring is set to open before mounting the FD lens to it and then set it over to lock to have control over the aperture and then mount it to the camera like you would a typical RF mount lens. The adapted lenses mounted securely and I didn't feel any wiggle or play, The images I'm getting with them are fantastic (I included a few of my favorites I got with a vivitar 200mm f/3.5 and a canon 50mm macro f/3.5) and with the very low cost of most FD lenses on the market (both lenses I mentioned can be found for under $100 each) pairing this adapter with an R series camera is a great way to pick up some nicer lenses on the cheap if you're starting out like me!

Information was incorrect on adaptability of lens for our camera.

This adapter works great with my old FD lenses that I used with my Canon AE-1. I thought it would be difficult to focus manually but with the peak focusing feature turned on my Canon R8 it is fairly easy. Of course I cannot focus as fast as a native RF lens but gives some life to my old lenses. Solidly made and a reasonable price. Make sure to engage the lock ring to enable the aperture to function properly.

This Canon FD to Canon EOS R adapter is essentially perfect. It is very heavy for what it is - it is made with a lot of metal. Both ends of the adapter fit very nicely: Both the camera side (EOS R) and the lens side (FD) connect with a reassuring and tight "clunk". The distances seem to be spot on - no issues with infinity focus.I was expecting to pay a LOT more than this to fit my ancient Canon FD lenses onto my lovely, new EOS R. This adapter does the trick! It is hard to know why one would choose to buy something more expensive.Now, about the FD lenses - they S-U-C-K compared to my new RF lenses (the 24-105MM f/4L IS USM and the 35mm f/1.8 IS STM). I took some rather carefully planned images with the FD 135mm f/2 and the 100mm f/2.8. Before I got to the pixel level, I could see that the images were soft. Even stopped down to f/5.6, they were still soft.My FD 135 seems to be a little misaligned (there are ghosts visible at the pixel level); my 100 is just soft. I was (naively??) expecting more.Also, the nifty little box with fingers above it that move as you focus, which the R has as a second manual focusing aid, are not visible with these lenses. This is a big disappointment for me. You still have the sparkly red focus thingys, and you can zoom in with the EVF to 10X, so (overall) Manual Focus is OK. (I suppose the box/fingers aid is only possible when the camera can "hear" the focus position of the lens.)Alas. Whatever.It is still a nice feeling to be able to mount my old Canon glass on my new Canon camera.Addition: I also bought the Leica M lens to EOS R camera adapter, and it seems that the reviews for that item falls here, too. The quality of the adapter is also excellent in every way. Highly recommended! The biggest difference if that the old Leica M lenses I inherited from my father are very, very good. The pixel-level image quality is great.I am a happy camper!