The S4/i T2 Prime Lenses from Cooke features optimal optical performance, /i Technology lens data transfer, and an ergonomic mechanical design with smooth, cam-based focus adjustments. This 50mm lens incorporates an aperture range of T2.0 to T22, focus scales marked in both feet and meters, and color matching with other modern Cooke cine-style lenses. The S4/i lenses minimize flare, distortion, veiling glare, and spherical aberrations even at the full aperture setting. The S4/i lenses are PL-mounted, making them compatible with most professional cine-style cameras.

Cooke's /i Technology provides a wealth of lens data crucial for matching shots, VFX work, and post-production. Metadata parameters include focal length, focus distance, lens aperture, depth of field, hyperfocal distance, the lens serial number, and more. A modular design ensures easier maintenance and servicing of the S4/i lens series.