Helios-44M-4 is a compact, tightly assembled, weighty lens.
Enlightenment is multi-layered purple.
Focal length: 58mm
Field of view angle: 40° 28′
Frame size: 24×36 mm
Number of lenses/groups: 6/4
Working length - 45.5 mm
Relative opening: 1:2
Aperture scale limits: 1:2-1:16
Number of diaphragm lobes — 6
Aperture adjustment - blinking
The near focus limit is 0.5 m
Connections:
lens with camera — M42×1
for screw-in attachments - M52×0.75
Mounting location for light filters: front
Resolution according to TU (center/edge): 41/20 lines/mm
Light transmission coefficient: 0.85
Weight - 246 grams