Fotasy Copper Adjustable M42 Lens to E Mount Adapter, 42mm Screw Mount to E Mount, Compatible with Sony a7 a7R a7s II III IV a9 a7c Alpha 1 a6600 a6500 a6400 a6300 a6100 a6000 a5100 a5000 a3500 ZV-E10

I have this lens (bought it new 50 years ago) and it is still in prime condition. It is a M47 screw mount. I have adapted it to my A6500 and works fine except the focus at infinity is a little off. This happens when the flange distance is a little off. This lens has a pin that would feed back the aperture to the camera (I had Pentax ES). The 2 adapters linked below I bought. They had plus/minus but both worked. https://www.amazon.com/dp/B00LECY8OW?th=1 https://www.amazon.com/dp/B003YBPRHI?th=1