Yeah, I've been very fortunate over the years about used gear, but I'm always careful about what I buy and from whom. I've shipped the lens back to the seller now and he's been very supportive so far. He says he's going to refund my return shipping charges AND he's going to find me a replacement lens and ship it to me within a week. Now this is the way you do business if you ask me. If everything pans out I will have no qualms buying from this seller again, in fact I might even become a regular customer.