The 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. These new full frame versions have a 1.8x squeeze, unlike the S35 Anamorphics which have 2x. This allows for sought after anamorphic characteristics while maintaining the highest image quality.