The Sigma 18-35mm T2 Cine High-Speed Zoom Lens with a Canon EF mount and with focus scales marked in feet provides an image circle that covers Super 35mm-sized sensors. It features a maximum T-stop of 2, and the aperture does not ramp over the zoom range. It shares common lens gear positions with the other lens in the Sigma High-Speed Zoom lineup, which makes for rapid lens changes.