The Cinelux-Ultra line of lenses are high-performance 35mm and 70mm (5 perf) projection lenses. They have been designed to incorporate state-of-the art technical advances resulting in exceptional corner resolution capability with superior brilliance and optimum distribution of illumination over the whole picture area. These excellent qualities have been attained by the application of the latest design philosophy and methods of calculation, new optical materials, and the highest level of precision in manufacture.
The Cinelux-Ultra is a 6-element double Gauss lens system. Two convergent lenses are placed front and rear, with two divergent lenses with their concave surfaces face-to-face in the middle, to form the system.
Cemented surfaces are not used so as to reduce heat damage. Cylindrical curvature of 0.1mm to 0.2mm in the film gate has been incorporated into the design parameter to give excellent corner contrast. The latest technology in anti-reflection multi-coating is applied to all glass surfaces to achieve maximum light distribution over the entire image field. All lenses are available with 70.65mm or 62.5mm diameter mounts and 45mm and longer focal lengths can be used in conjunction with anamorphic attachments.