I got my wife a Nikon D3100 for Christmas. I would like to also pick up a telephoto lens. I was looking at these two. Any thoughts about them, i know there are not top of the line but are they worth messing with.
Nikkor DX 55-300mm VR telephoto super-zoom
or
Tamron AF 75-300mm f/4.0-5.6 LD for Nikon Digital SLR Cameras
Nikkor DX 55-300mm VR telephoto super-zoom
or
Tamron AF 75-300mm f/4.0-5.6 LD for Nikon Digital SLR Cameras