In article <33247B2D.7B17@mclink.it>, md4303@mclink.it says...

>I'm interesting in purchase of a Nikkor 180.
>I know that AI version is very sharp.
>Is the ED version much better? (The price is very expensive.)

All the Nikkor 180's from the earliest f2.5 are all fine lenses,
though my favorite (for best close-focus performance) is the
AF version (much as I prefer MF lenses generally! ;-). BTW,
I have a beater AI'd 180 Nikkor (good glass and mechanics)
that is sharp, and reasonably cheap - e-mail if interested.
Hope This Helps