OKS1-25-1 25mm f/2.5 lens in good condition. There are minor micro scratches on the lenses. Light filter included. Manufacturer: Krasnogorsk Mechanical Plant. Resolution according to specifications 45/20 lines/mm. The luminous diameter of the front lens is 11.5 mm. The luminous diameter of the rear lens is 9.5 mm. The number of aperture blades is 8 pieces. The minimum focusing distance is 50 cm. Designed for 16 mm film cameras.
Item condition: Good There are external traces of use. There may be abrasions and micro-scratches, the product is technically in good condition. "OKS1-25-1" is a lens designed for shooting films on 16 mm film. f=25 mm; 1:2.5; 2W=28.02
Basic information:
Manufacturer - KMZ; Lens type - Planar; Focal length - 26.27 mm; Eff. rel. Lens holes (1:P) - 1:3.4; Lens length - 15.18 mm; Per. top focal distance - -15.00 mm; Rear top forec. distances - 16.65 mm; Working distance - 21.18 mm; Block length - 20.05 mm; The largest block diameter is 20 mm; The diameter of the back of the frame is 22 mm; The luminous diameter of the front lens is 11.5 mm; Rear light diameter lenses - 9.5 mm; Distance from the rear end of the system frame to the focal point. pl. - 16.6 mm; Frame size - 7.45x10.05 mm.