GOI f. Leningrad Jupiter-3 1.5/5cm prototype *

A rare GOI prototype lens—part of the State Optical Institute’s select series of experimental optics from 1948–49—designed for the exceptional GOI-Leningrad rangefinder camera. This lens is one of several (e.g., Uran-14 wide-angle, Jupiter-3 f/1.5, Industar-33 tele) crafted to exacting standards and paired with a quick-change mount system. The offered example is in beautiful condition, with very good optics.