Helios-103 lens 1,8/53 mm Kiev-Contax bayonet mount Russian RF 7 pcs.
Standard lens for rangefinder camera "Kiev" - 4, 4A, 4M, 4AM. This lens is somewhat better than its predecessor - the Jupiter-8M, the output is a more clear picture. Preferred for landscape and architectural photography..
Mount - Bayonet (for Contax RF, Kiev 2,3,4 cameras, Nikon S)
Angle of view - 44 °
Focal Length - 53 mm
Relative aperture - 1: 1.8
Frame size - 24x36 mm,
Number of lenses / groups - 6/4
Working distance - 34.85 mm
The limits of aperture scale - 1: 1.8 - 1:22
Closest focusing distance - 0,9 m
Resolution (center / edge) - 55/28 lines / mm
lenses externally has minor wear. Inside there is a micro scuff marks from rubbing cloth. There pollen inside - which is easy to clean and you do not make complexity.