Found this lens in a consignment shop for $80. After inspecting the lens for a few minutes I decided I was going to buy it, but not at that price. The glass on it has a few light scratches on the coating of the front glass. The rear glass is flawless. The only thing I could visibly see was that the barrel looked pretty beat up and it smelled like someone used it for an ashtray. Mechanically, the lens had a few problematic areas where I could feel some hesitation when trying to turn the focusing ring. It did have a what I can only describe as a "grainy" feel to it. I called my wife's cousin, who is a photographer, and described the lens. He told me to put it down because the problems I mentioned made an expensive paperweight. Having been a certified welder in the Navy, cleaning barrel and filing the threads made this more of a reason as to why I should buy it. After what seemed like 15 minutes of haggling and showing reason as to why I shouldn't pay more than $10, I walked away having spent only $15.