The Cooke Anamophic /i lenses offer superb optical and mechanical performance. Like the S4/i, 5/i and miniS4/i prime lenses, the cam focus mechanism allows for smooth focus adjustments in the Anamorphic /i lenses. Modular construction increases ease of maintenance and serviceability. The Anamorphic /i lenses are designed and made by Cooke Optics to their traditional high standards in Leicester, England and feature an accurate 2X squeeze.