2, Carl Zeiss is a German manufacturer of optical systems, industrial measuring instruments and medical equipment, and is a world-class manufacturer of camera lenses. The history of Carl Zeiss lenses began in 1890. Since then, Carl Zeiss, as a lens company with 150 years of tradition, has made a name for itself in the field of medical series, bifocals, camera lenses, enlarging lenses, eyeglasses, planetariums and other optical equipment.