Summary: I had been birding with a Tamron 70-300 f/4-5.6 VC zoom that I purchased Used - Like New on Amazon for $340 and wanted to step up to the next level without breaking the bank on an exotic telephoto lens. I purchased the Nikon 80-400 f/4.5-5.6 Used - Like New condition here on Amazon for about $900.
Summary: Well, the 80-400mm isn´t a lens for wildlife photos, because it isn´t sharp and the focus is too slow. I think that the Nikon should do a new one, further if the Nikon make a new one better than the oldest they will increase the number of new photograph with Nikon cameras. Why a think that?
Summary: I own many Nikkor Lenses and this is the only one with which I am disappointed. I have three major problems with the lens. First, the autofocus being outdated is very slow. Second, images exposed at 400mm and f/5.6 are extremely soft.