As many of you probably saw, I recently posted a thread on intermediate lenses. Based on everything I've read and heard, professional glass is, more often than not, worth the investment. Unfortunately, I can't necessarily afford pro level glass so the used market seems like the only option. I would wager that anyone willing to spend serious money on new pro level glass is going to treat that equipment well. I've seen how a lot of pro photographers treat their lenses and have concluded that they probably treat them with greater care than their own children. That said, my concern with buying used camera equipment is that no matter how careful someone is, it is relatively easy to damage something. Thus, I'm curious as to how safe it is to buy used lenses online. You can't see the lens in person so you can't examine it for damage, which means you are completely reliant on an analysis created by the very people trying to sell you the equipment. Then again, I'm not sure if I'm qualified to make a more accurate analysis in person. So, in summation, my questions are... Is it "safe" to buy used lenses online? Is it preferable to buy used lenses from a brick and mortar store? Which online retailers are reliable and have a good selection of used lenses (I'm a big fan of B and H, but they don't have much used inventory)? Which brick and mortar stores in the NYC/Metro area sell reliable used goods? I shoot Nikon and am looking to buy a pretty wide range of glass. Any help would be much appreciated.