Helios 44M LENS f2/58mm mount M42 USSR for Canon, Nikon Zenit Praktica
USSR lens Helios 44M is a six-celled anastigmat with single-layer or multi-layer (MS) clarification based on the Biotar 2/58 lens (Carl Zeiss Jena). According to the optical scheme - planar. One of the most common lenses of the USSR, which were equipped with cameras Zenit mount M42. Specifications: Format: 35mm mirror Type: Constant focal length (fixed) Focus: Manual Focus System: M42 Optical design: 6 elements in 4 groups Focal length: 58mm Aperture: f / 2.0 - f / 16 Petal Aperture: 8 Diameter of filter thread: 49mm Weight: 270g Length: 42mm Year of production: 1975
Product condition: Traces of cleaning on the front lens. No fungus and dust inside. Focusing is working properly. Aperture only works in manual mode.