The lens "Industar-55-U" (4.5 / 140) is a four-ling anastigmat of medium speed. Objective lenses are chemically clarified.
The lens is designed for photographic enlargers with a frame size of up to 60x60 mm. It was produced in the frame for the photographic enlarger "Belorussia-2". The lens was used to obtain prints from negative 24x32, 24x36 and 45x60 mm. The optical details of the lens are mounted in a special frame. The frame has a thread with which it is attached to the flange (80x80x3 mm.). Flange lens attached to the enlarger.
Diaphragm ranging from 1: 4.5 to 1:22 is produced by rotating the diaphragm ring. The set aperture value is determined on a scale against the index. Focusing the image produced by the mechanism of the photographic enlarger.
Specifications: Format: Medium format mirror Type: Constant focal length (fixed) Focus: Manual Focus Focal length: 140mm Aperture: f / 4,5 - f / 55 Diaphragm Shaper: 8 Filter: no Weight: 170g Length: 62mm Product condition: Excellent condition! The lenses are clean, without fungus scratches and dust.