I have a used Sigma 70-300 APO available for sale. The lens has usage marks on it but absolutely no damages. I've used it extensively & it has definitely been one of my prized possessions till date. You can view pictures shot using this lens here. I've had great results using it. See the lens reviews here.I haven't decided upon a price yet, I bought it for 11K new around 4 years ago. I'll ask around the market what an ideal selling price would be. Interested buyers can send me a message from my website.The reason I'm selling it is because I have got myself another telephoto.