1. normal focal length, ~50mm
2. low distortion
3. at least f2
4. close focusing (like ~0.4m, macro not required)
8. can be AF or manual focus and I would use it on Nikon F2 and F80 (so if manual focus, AI-S flavour is prefered; I would install "dandelion" chip on the lens)
9. hi contrast lens works better for me than low contrast
10. the cheaper the better
I'd use it for general photography (urban, landscape, people) alongside my Nikkor 28/2 AI-S.
According to research so far, I should be looking at Nikkor 50/1.8 AI-S (long barrel) or Zeiss Makro Planar 50 at the other end of the price range.
Comments, suggestions, experiences? Thanks!