In article <5g48qf$i15@news.nstn.ca>, chefurka@fox.nstn.ns.ca says...
>In article <5g3tgc$hh2@newsstand.cit.cornell.edu>, d_ruether@hotmail.com says...

>>- but you forgot the earliest version: a 180mm f2.5 Nikkor...

>Wasn't the 2.5 available only in the rangefinder mount? (Granted, it was
>still a Nikkor...)

Umm, at least Camera 35 did a report on it way back when, though it
was a preset lens originally designed for the Nikon rangefinder camera,
adapted with a tube to the F-mount... (Then there was that 350mm f4.5
Nikkor in F mount that I had in my very own hands, and didn't buy...
[with a semi-auto diaphragm, too];-).
Hope This Helps