PT3705. An earliest versions of standard lens for Kiev-5 camera, released by ARSENAL in 1965-1970. Focal length - 5 cm (5.2 cm), aperture range f2 - f22. Focusing range from 0.9 m to infinity. Number of elements/groups - 6/3. Angular field - 45º. Kiev (Contax) mount (external bayonet only). Lens opposite from private collection in China.