Helios-44M-4 58 mm F/2.0 USSR Objektiv, M42 Mount! s/n: 87388827
Based on the lens Carl Zeiss Biotar 2/58. Helios-44M-4 58mm F/2.0 USSR Lens, M42 mount! Lens mount: M42. Focal length: 58mm. Artistic portrait lens with good sharpness and beautiful swirling bokeh.