Wide-angle orthoscopic topographic aerial photographic lens for cameras with a frame format of 18x18 cm. Components / lenses - 4/6, aperture limits - 6.3 - 22; angle of view along the diagonal of the frame - 65 °; resolution (center / edge) - 50/20 (according to other sources - 42/18, also [175, p. 48-49] - 60/20) lin / mm. Distortion - 0.04 mm. The lens is corrected in conjunction with a glass plate that aligns the airfilm. Used in cameras AFA-41, as well as in the satellite for near space "Kosmos-4" (1962).

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