The Problem: Ensuring Lens Performance In the motion picture business, an assistant camera operator must be absolutely confident that the focal length markings on each lens are accurate; that the chosen lens for a shot will produce a perfect, predictable image by 21st-century standards. Because … [Read more...] about Möller-Wedel Optical Autocollimator Use Case: Duclos Lenses Autocollimator Bench for State-of-the-art Motion Picture Lens Calibration