RARE Industar-69M 28 mm f / 2.8 lens M39 for Leica screw-mount (LSM) USSR Soviet
RARE Industar-69M 28 mm f / 2.8 is a high-aperture, wide-angle lens with a fixed focal length for the semi-frame apparatus Chaika. It may be of interest to owners of compact mirrorless cameras with interchangeable optics. It can be used on the Spark / Lake, but given the fact that the distance scale on the lens will need to be marked differently.
Specifications: Format: APS-C (crop) Type: Constant focal length (fixed) Focus: Manual Focus System: M39 Leica screw-mount (LSM) Optical design: 4 elements in 3 groups Focal length: 28mm Aperture: f / 2.8- f / 11 Petal diaphragm: 5 Weight: 55g Filter: 22.5 Year of production: 1980 Product condition: Excellent condition! Lenses clean no scratches, fungus and dust. The mechanics are working properly.