He was traveling overseas and found the lens lying on a beach; it is in perfect, like new condition! He advertised it, attempting to find the owner, but no one claimed it. He contacted me to see if I would be interested. He wouldn't even let me pay for shipping! Thank you to my friend, who wishes to remain anonymous.
I went to Garden of the Gods the other night to try out the lens. Wow! It takes amazing shots! I think I'm sold!