The Cinema 11-16mm T3.0 with Micro Four Thirds Mount is a wide-angle zoom lens for APS-C or Super-35 sized sensors and features a Micro Four Thirds lens mount. The lens uses the same distortion-free design and optical performance of Tokina's 11-16mm f/2.8mm DSLR lens, but puts it into an all-metal housing optimized for video and digital cinema use. The housing provides manual focus control with an easy-to-read distance scale and a de-clicked aperture ring for smooth iris pulls. The focus, aperture, and zoom rings all have standard cine-style gears for use with follow focus systems.In addition to the new housing, the lens also has been updated with a parfocal design that allows you to maintain focus on your subject while zooming. The Tokina 11-16mm T3.0 utilizes two super-low dispersion and two aspherical lens elements to produce images with high contrast and sharpness, while multi-layer coating help minimize flare and ghosting.