Helios 40-2 85mm f/1.5 - Sample Images
Info and Reviews:
Made between: Old version 1969 - 1992
2015 Zenit released an updated version with slightly different exterior but seems to have the same optical.
Optical design: 6 elements in 4 groups
Lens mount: M42, Nikon F
Covers: Full-frame (24×36mm)