Fotasy Pentax PK Lens to Canon EOS R Mirrorless Camera Adapter

Very good

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.