AI-S version, in like new condition, with perfect optics, complete with caps, case, CA-2 Filter Wallet, with all filters, instructions, guarantee card, maker's box with matching number - The Nikon 13mm is the world's widest non-distorting professional SLR lens ever made, by anyone, in any format. It allows to get closer to any subject, stretches distances and creates images from perspectives otherwise unimaginable. Only about 350 were made in 22 years (1976-1998), and only to special order. The lens is rarely seen on the market, in this condition nearly impossible to find.