The Mitakon (Zhongyi) 50mm f/0.95 Speedmaster is an ultra fast prime lens with manual focus and de-clicked aperture movement, perfect for motion picture applications. It features a native Sony E mount for use with Sony's Alpha series including the A7, A7S, A7R, and the NEX cameras such as the FS100, FS700, and more! In addition to it's excellent speed, it also covers a 35mm full-frame. Without the need for adapters, the Speedmaster can be paired with any Sony E mount camera for accurate, reliable operation. Available with or without the Duclos Cine-Mod which adds a standard 32-pitch focus and iris gear.