I never imagined so soon after the EOS R being released I would find an adapter. but here it is and it works like a dream, I've been digging out my old Olympus lenses and snapping away like its the red carpet at the Oscars, all using manual focus and using the focus peaking, let me tell you I could not be happier, I'm even considering buying some lenses from the Oxfam shop down the road who refurbishes old Olympus lenses and sells them on. the adapter itself feels well made and I have had no problems with the camera rejecting it. great purchase and I highly recommend.
19/01/2022
Solidly built, snugly fitting and well-engineered adapter that lets you use classic Contax/Yashica lenses on a Canon R-mount camera. There are no electronic connections, so focus is manual - not a problem for mirrorless cameras with focus peaking and an electronic viewfinder. Use Aperture Priority mode and the camera automatically adjusts Shutter Speed and/or ISO for a proper exposure. I previously used first-generation focus-chip adapters with a DSLR. They worked, but only with a lot of finicky calibration (so you needed one adapter for each lens), and were very fidgety to mount. This new adapter for mirrorless cameras is a major improvement: It's purely mechanical (no electronic connection), but K&F nicely re-invented the mounting mechanics on this adapter (same for K&F's Nikon version) with a button you hold down to quickly twist lenses in and out. It's like having the mirrorless Contax camera that never existed! So much easier on lenses and on your patience. Great piece of kit that smoothly integrates vintage lenses into the latest generation of cameras. Couldn't be happier!
16/11/2021