Lame! I recall running a check to see if the this lens was compatible with my D40x, and had an understanding that it would be compatible with my camera. But, of course, it's not. Be extremely wary about buying these lenses free-floating. It doesn't work in any respect, whether as an auto-focus lens or in manual focus mode. So what is the point of selling lenses like this that are not even compatible with most of Nikon's DSLR cameras?