Industar is a Soviet made class of standard lenses. Not many came in the M42 mount and the best known is probably the 50mm f3.5 Industar-50-2. It is one of the smallest and lightest photo lenses ever built. However, the Industar 50-2 proves to be a competent lens, easy to carry around, sharp and with good color rendering.
Another Industar lens in the M42 mount is the 50mm f2.8 Industar-61M macro, which was apparently developed from the Tessar design. During the 1950-1960s Industar produced lenses for the older Zenit cameras, especially for those in the M39 mount. The factory which produced Industar lenses was KMZ.
Check our Industar lenses:
The 50mm f3.5 Industar 50-2 is a standard Soviet lens used to equip 35mm film cameras. The Industar is based on the Tessar design and was initially built in the M39 mount. The lens had a very long production span, so several versions were built and the mount was eventually switched to M42.
The Industar is very simple and reliable, but because of its reduced dimensions ergonomics are poor. Optics is not bad, but the lens is only single-coated so it's far from perfect when put to use in harsh conditions. Nevertheless, the Industar 50-2 is an interesting vintage lens that stands out not by its raw performance, but by its personality and design.
The 50mm Industar 50-2 f3.5 has a minimum focusing distance of 0.65m and it weighs an incredible 66g. Filter diameter: 35mm