Fotasy Copper PK Lens to Canon EOS RF Mount Adapter, Pentax K EOS R Adapter, Compatible with Pentax K Mount Lense & Canon EOS R Mirrorless Camera EOS R/RP/Ra / R5 / R6

Works well to adapt pentax lenses to my rf camera. Good all metal construction secure fit on both ends

The build quality of this adapter is excellent. It connects securely to both the camera and the lens, and it performs flawlessly. Keep in mind, this adapter is designed specifically for older manual lenses. As such, it is a precisely engineered metal ring with no electronic components—there is no communication between the camera and the lens, and it does not support autofocus. However, it is an ideal solution for using vintage manual lenses on modern cameras. Just be sure to adjust your camera settings to allow operation without a detected lens, and note that you will need to focus and set the aperture manually.

I purchased this so that I could use my old manual lenses from years ago. I have some older, good quality K-Mount lenses that I want to use with my Canon R10 and this product fit the bill. The connection at the lens is very stiff but I would rather that than loose. Since I'm not changing out the lens on the adapter, very often, it's not a hue deal. Connection to the camera is not stiff but nice and snug. This product is more affordable than some of the competition and there is really no quality disadvantage. I recommend it highly.

Fits solidly to a Canon R50 and a Pentax 50mm f1.8 lens. No play or wiggle anywhere. Solid metal construction. I was literally taking pictures with my 40+ year old lens one minute after taking this adapter out of the package.

This did not fit any of my EOS camera mounts and none of my P/K lenses mounts. Was cheap, so not to surprised, just disappointed. Sent it back.

There are quite a few Pentax K adapters to RF mount cameras, some more expensive than this one. Vintage pentax lenses have a certain allure, like the 50mm f/1.4 (8-element) with the signature bokeh. Anyway, I had about 3 Pentax lenses so I wanted a cheap adapter, one for each lens. I ended up buying the Fotasy and they fit all the lenses well. I only had one of them that seemed tighter than the others on the lens side but with vintage lenses, you never know, it could be the lens that is slightly out-of-round. That also meant releasing the lens from the adapter was bit more "sticky" than most but I rarely had to dismount the adapter from the lens. Anyway, on the RF camera side, the adapter fit perfetctly, no tightness at all. I would rather have three adapters for three lenses rather than one adapter I would have to transfer all the time. At this price piont, Fotasy made it worth it. Would buy again from this company.

It works great. Saved me lots of money on not buying new lens. For sure would buy agin. Nice and strong.

This does precisely what it says, and does it well. I have an adapter for Pentax to EF mount and always hated that my aperture range was limited, due to lens design. Now, on the RF mount, I have access to my full aperture range on my older lenses. I'm not planning on using the old manual lenses often, but I'm glad that I can, and they work great now on the Canon mirrorless camera. If you're looking to adapter your old lenses, then grab this and grab it quick.

Very good