Belomo MMZ HELIOS 44-3 f/2 58mm M42 MOUNT Lens Cyrillic
Standard lens with coated optics for SLR cameras with M42x1 thread.
MS Helios-44-3 is not a very common lens.
It was produced only by the Minsk Mechanical Plant named after S.I. Vavilov (MMZ) from approximately 1986 to 1994.
Sources often indicate a shorter production period, but the simplest amount of photos of lenses and scans of instructions on the Internet indicates at least such an interval.
Specifications
Aperture limit: 1:16
Resolution (center/edge): 38/20 lines/mm
Minimum focusing distance:0.5 m
Landing thread for nozzles: M42
Frame size: 24×36 mm
Enlightenment: Multi-layered blue shade