The Cooke S4/i prime lenses are an industry benchmark, renowned for delivering the quintessential "Cooke Look" that cinematographers worldwide covet. This look is characterised by warm, natural skin tones, exquisite contrast, and beautifully rendered out-of-focus areas, often described as organic and pleasing. Each lens in the S4/i series is meticulously designed to provide superb optical and mechanical performance, with exceptional control over flare, distortion, veiling glare, and spherical aberrations, even at their wide-open T2.0 aperture.

A hallmark of the S4/i series is Cooke's proprietary /i Technology. This innovative system provides crucial lens metadata directly to compatible cameras and post-production workflows, including focal length, focus distance, aperture, and depth-of-field information. This streamlines the filmmaking process, especially for visual effects and virtual production.