OK, very cool/rare/hard to find:
Jupiter 50mm lenses that have been adjusted/shimmed to focus on digital rangefinder cameras (M8/M9).
As some folks are aware, Brian Sweeney at rangefinderforum is the man when it comes to shimming/CLA'ing the Jupiter 50mm lens, as neither the J8 nor J3 focus correctly on the M8/M9 due to design differences in the Russian vs German rangefinders. However, once adjusted properly, they are stellar yet inexpensive 50s!
I have two for sale, both are spot-on focusing wide open on my (now sold) M9:
J-8, 50mm f2, black version : $125 incudes shipping in US.
J-3, 50mm f1.5 SONAR (just like the new Zeiss lenses): $325, includes shipping in US.
Pics to follow, email me. Both lenses are OLD, used, and work freaking incredibly well! I have pics from both on my flickr site and did an article about them on Steve Huff's site. --Rob