This is pretty cool for you Nikon shooters out there. Nikon has recently produced a web based tool that shows all of their lenses with respect to focal length, function (i.e. VR, AF-S, etc.), format and more. If you are thinking of which Nikon lens to buy or if you are wondering what other Nikon options are out there, then you’ll really appreciate this tool. Here’s the link: http://imaging.nikon.com/products/imaging/lineup/lens/positioningmap/index.htm