gerald widen , Dec 12, 2002; 01:17 p.m.
The older silver lenses are supposed to be better made in the 1950's and into the 60's when Soviet quality was supposed to be better. They are coated. However I have a Jupiter 35mm/2.8 black made in 1974 (the first two digits of the SN are usually year of manuf.)which is an excellent performer and well made very smooth focusing. Much better than my Summaron 3.5 ever was and not that far from my LTM Canon 35/2 which is comparable to the earlier 35 Summicrons. I also had (sold) a black Jupiter 50/1.5 that had excellent glass and focused smoothly but wasn't quite as well made. So I guess a little good luck helps.