In article <01bc1734$d8092ef0$9e8cc6c6@elrond>, rashken@israel.kla.com says...

>I have an opportunity to purchase a Nikkor 105mm f2.5 AIS for $125, and
>wanted to know how good this lens is, and if the price is reasonable.

Uh, move quickly (but carefully, so as not to cause alarm) toward the
seller, cash in hand, and thrust it into his hand (or pocket, if necessary) whilst simultaneously grabbing (firmly!) the lens...! ;-) (Assuming that
that fine lens at a bargain price is in good shape, of course....)
Hope This Helps