INDUSTAR-50-2 Zenit Lens Soviet Union M42, 50mm f/3.5.

Focal length: 50mm

Diaphragm: f/3.5 - f/16.0

Number of aperture blades: 7 pieces

The weight: 70 g

Optical design: 4 elements in 3 groups

Thread: M42

Filter Diameter: 35mm (there are also 33.5mm lenses)

MDF: 0.65 meter

Industar 50-2 can be used on many modern SLR and mirrorless cameras with an appropriate adapter.

The lens has been used. The aperture and focus ring works smoothly. The lens is in full working order.