Award winning Cooke S4 Prime Lenses were designed and developed in close technical collaboration with industry professionals. They are color-matched and compatible with Cooke's 18-100mm T3.0, 25-250mm T3.7, and 15-40mm T2.0 CXX zoom lenses.
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. Modular construction increases ease of maintenance and serviceability.