GOI Rekord-1 1/37mm OB381 prototype

An extremely rare Soviet prototype lens, the GOI Rekord-1 1/37 mm, produced only in a few experimental samples by the State Optical Institute (GOI) and never released for regular production. It is a fast wide-angle lens notable for its f/1 aperture and absence of diaphragm. The offered example is in excellent condition, with very good, coated optics. It comes with original caps and a metal keeper.