Jupiter-8 (Юпитер-8) lens is a great Soviet/Russian-made copy of a Zeiss Sonnar 50/2. It was produced in both Contax/Kiev bayonet mount and in Leica thread mount.
- Focal length: 50 mm
- Aperture: 1:2 (steps from 2 to 22)
- Focusing range: 1 m – ∞
- Filter size: 40.5×0.5 mm
- Optical registration (back focus): 28.8 +/- 0.02 mm
- Mount: M39x1 mm (LTM). The lens mounts and RF couples with any Leica or Leica copy (FED, Zorki etc.)
The lens is finished in black – later production version made from mid-1960’s to the production end in the late 1970’s. The glass is coated.
This Jupiter-8 comes with generic front and rear caps.
The Jupiter-8 was sold as a premium option on some Zorki cameras (Zorki, Zorki-2S, Zorki-3 to name a few). The b