The SLR Magic 25mm T0.95 HyperPrime Cine III Lens is an exceptionally fast normal focal length lens for Micro Four Thirds cameras (50mm full-frame equivalent). The fast T0.95 maximum aperture lets you capture images with a shallow depth of field, while also benefiting low-light filming. Designed to support a cine-style workflow, the lens features a clickless iris for smooth iris pulls and cine-standard geared focus and aperture rings. Compared to the 49mm front filter threads found on the Cine II version, the Cine III lens features 52mm front filter threading for attaching filters or other optional accessories, such as the SLR Magic Anamorphot adapter and Achromatic Diopters. An optional lens support is recommended when using the Anamorphot, especially when using diopters.