Quote Originally Posted by E. von Hoegh View Post
If your lens has a diamond textured rubber focussing ring, and is marked as you say, it is a 'K' version.
Not true. The K version is the black barrel lens that looks like an AI/AIS lens. The diamond pattern rubber focusing ring was used on zooms and certain primes, like the 55/3.5 Micro-Nikkor-P/PC, and the 180/2.8. Both of those lenses were chrome barrel, unlike the K version.

A Micro-Nikkor-PC: http://www.destoutz.ch/lens_55mm_f3.5_734997.html

A 55/3.5 Micro-Nikkor K version: http://www.destoutz.ch/lens_55mm_f3.5_910139.html

The compensating diaphragm 55/3.5's have a metal focusing ring usually marked with a distance scale in either meters or feet. Serial numbers are much lower, too, being below 300,000. As the helicoid is extended, the diaphragm slowly opens up.

Quote Originally Posted by LJSLATER View Post
I just bought one of these the other day, coincidentally. The same version, too (pre-AI with the diamond grip). I was shocked at how lightweight it is--there's hardly any glass in the damned thing!

I bought mine for slide copying, but I'll definitely try it outside. I tend to marry myself to new lenses after acquiring them.
It's a great little lens. Slow for a normal lens, but it does the job quite well. Was what John Shaw used back in the 1970's through the early-mid '90s. Who knows, he may still have it today, even though I doubt he does much shooting with it, since he probably has current generation Nikkors that do the job.