Helios-44M 58 mm F/2.0, M42 Mount, UdSSR Objektiv! s/n: 8110703
Based on the lens Carl Zeiss Biotar 2/58. It has 8 blades diaphragm! Helios-44M 58mm F/2.0, M42 mount, USSR Lens! Lens mount: M42. Focal length: 58mm. Artistic portrait lens with good sharpness and beautiful swirling bokeh.