Jupiter-8 2/50mm Soviet lens mount M39 for mirrorless cameras USSR

Jupiter-8 Silver Soviet aperture lens in good condition. USSR production - Krasnogorsky Mechanical Plant, early 1970s.

Specifications:
Optical design: 6 elements in 3 groups. Copy of Carl Zeiss Sonnar 1: 2/5 cm
Format: 35mm mirror
Type: Constant focal length (fixed)
Focus: Manual Focus
Number of diaphragm blades: 9
Focal length: 50mm
Aperture: f / 2-f / 22
Length: 45mm
Weight: 130 g
System: m39
Diameter of the front filter: 40.5mm

Product condition:
Good condition. Slight cleaning marks on the front lens. Fungus and no dust. The mechanics are working properly.