In article <50n8t7$8aq@sjx-ixn6.ix.netcom.com>, rzuch@ix.netcom.co says...

>In my manual, it states that you should not use non-AI lenses on the
>N90s because the camera body or lens may be damaged. What about non-AI
>lenses that have been converted to AI? Are they OK?

Yes, as long as the body AI tab clears the rear edge of the lens
aperture ring when the body and lens are first mated, and before
the lens is turned to the locked position (make sure that the
milled slot is long enough to avoid contact when the lens is first
mounted, no matter what aperture is set on the lens).

>I just received a lens from Wall Street Camera that was supposed to be
>AI but is instead a converted lens. At least I am assuming so, since
>there is a milled slot in the rear ring. I would hate to think I am
>damaging the contacts on the body whenever I attach this lens.

Wall St Camera should have told you it was AI'd, rather than AI....
Hope This Helps