Super cheap at $180
I bought this 85mm from here with full disclosure that it's focus "knocks" and in general it's best to consider it Manual Focus.
It takes great shots but the focus stutters sometimes. Often a twist of the ring will start it all over and get it to lock but sometimes it hunts when it shouldn't. See the video.
First the lens.
[Photos got pushed to the end I'm not sure why.]
An example shot.
This one shows it generally being slow and very loud, stuttering, knocking I don't know what to call it.
This one shows it failing to focus then I have to release and restart on BBF.