Hello I would like to pick up a 300mm zoom lens for my N80. I like to photograph the wildlife when I take walks. I have a Tokina ATX 400mm f5.6, but the fixed focal length and weight make it not my first choice. I also have a tamron 70-300mm f4-5.6 but the image quality is a bit lacking. Shots from my stock Nikkor 28-80mm are noticeably sharper. They seem to be all the same f4-5.6. Are there any stand-outs? Are they just not as good as their fixed-focal length cousins?