MIR-1B 37mm f2.8 for M42

Description

ThisMir-1B 37mm f2.8 lensis a classic Soviet revision of an earlier Zeiss design, designed for the M42 thread mount. Smooth focusing, some oil on diaphragm which does not affect function,minor internal dust and light cleaning marks; cosmetic condition is good, but there’s definiite wear. A cool lens in good working order.