Luminescent lens 10 x 40 produced by LOMO (Leningrad Optics Mechanical Association). The lens is in excellent condition, the lens is clean, without scratches. Lenses for lenses were made of natural quartz. High quality.

The diameter of the connecting thread is 20 mm. Suitable for many models of microscopes of other manufacturers: Zeiss; Leitz; PZO; Olympus; Meopta and others.