Zenit - Krasnogorsky zavod named S.A. Zverev   Helios 40T 1.5/85

Specification

Mount M42x1
Focal length, mm 85
Maximum aperture f/1.5
Minimum focusing distance 115 cm
Diaphragm action manual
Angle of View 28°
Filter size 68 mm
Construction 6 elements in 4 groups
Dimensions, (Diameter x Length) 110x82 mm
Weight, kg 1.09