“NIkon d3100 70-300 lens I am looking at two lenses for the Nikon D3100. One is Nikon AF-S DX 55-300 VR lens and the other is Nikon 70-300 ED-IF AF-S VR telephoto lense. Im not sure which one I want to purchase for my Dads new Nikon d3100. I believe I purchased the second one for my D5000. Any help would be appreciated.”