A lens that can see behind itself – the idea is almost boggles the mind, but this is what the Fisheye-Nikkor 6mm f2.8s that claims to do, to provide 220-degree viewing angle. This giant of a fisheye lens was introduced in 1972, and reportedly only available by special order. Price to get your hands on one now? Oh, only about £ 100,000 ($ 161,210 U.S.) for the lens in mint condition, and only from Grays of Westminster, London camera shop that deals exclusively with Nikon products. This is not the first time that this wonderful piece of glass appeared, two years ago a similar lens eBay $ 34,020 hit songs – really cheap, in comparison. See the source link below to look at the sales. Wallet can not take damage? Range “scope” for a little history of Nikon.