In total, about 80 thousand copies of these cameras have been produced over the years. At the World Exhibition in Brussels in 1958, Leningrad" received the "Grand Prix, which is proudly announced on the first spread of the instructions. Regular lens Jupiter-8 2/50 or Jupiter-3 1.5/50. The 3rd Jupiter is not bad for a staff member, agree? I have, however, a version with the 8th Jupiter.
The interchangeable optics has an M39×1 thread. Working distance 28.8 mm.