The Cooke 5/i S35 T1.4 100mm prime lens is engineered for Super35 format cinematography, featuring a T1.4 maximum aperture for precise low-light control. It includes dual imperial/metric focus scales, 140-tooth focus drive gear, and 134-tooth iris drive gear with 90° rotation. The lens covers a 30mm image circle, offers a 17.1° diagonal angle of view, and maintains a minimum marked object distance of 750mm. Weighing 2.9kg with PL mount, it ensures compatibility with high-resolution digital cinema workflows and supports M105 x 0.75 screw-in filters.