Helios-44-2 58 mm f / 2 - bright, normal lens with fixed focal length lenses for cameras with threaded connection M42.
Produced at the Krasnogorsk mechanical plant and Valdai plant "Jupiter". It is available with single chemical enlightenment
Characteristic
Format: 35mm SLR
Type: Fixed focus lens (fixed)
Focus: Manual Focus
System: M42
The optical scheme: 6 elements in 4 groups
The resolution of the TU (center / edge):
Helios-44-2: 38/19 lines / mm
Transmittance:
Helios-44-2: 0.80
Formula color:
Helios-44-2: 10-0-1.5
Geometric vignetting: 58%