This thing makes your DSLR camera look like a point-and-shoot model. It's not a true Camera lens, it's actually a modified Telescope + Camera mount. This is nothing new, there have been several mods done in the past mounting cameras to Telescopes, but this China company seems to have made things much more simple. The 2000mm is not actual, but it's estimated from cropped cameras such as the Canon 7D and 550D / T2i. I'm not sure what the real quality of the lens is, I don't always believe the marketing material, but it would be interesting to really see one of these things at work. You can find more information on these lenses at eBay. Click Here.