whether it be a super fast aperture, super telephoto, super expensive, or just super rare lens, post it here with a picture and what you think of it
Nikon 8mm f2.8 Fisheye Ai-s
(my friend's, he got it for $600 at a yard sale)
have only used it on a crop, on which it vignettes a bit
build quaity is superb though and its really fun to use. has some neat built in rotating filters that arent very useful for digital, but still interesting to use.