Agfa Colostar N 57/4.5

Heliar lens fitted to Colormator rollhead printers, Variograd belt copying machines and other Agfa industrial imagers. Optimised for 3.5x magnification. All silver versions have same tooling/casing as Steinheil enlarger lenses. Later versions all black. Commonly mis-spelt ‘Colorstar’.

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Dimensions	57 mm
Focal Length (mm)	57
Max Aperture (f)	4.5
Min Aperture (f)	16
Aperture Blades	Circular
Elements	5 / 3
Rear Mount	27.4×0.5mm
Serial Numbers	00198
Production	c.1958-1980