High quality cinema primes with integrated /i lens data.

The Cooke S4 optics offer superb optical and mechanical performance, control of flare, distortion, veiling glare and spherical aberrations at full aperture. The cam-type focus mechanism allows for smooth focus adjustments. All S4i lenses feature the electronic /i technology which enables film and digital cameras to automatically record key lens and camera data for every film frame. We include the 100mm in our set at no extra cost.