Samyang Xeen 20mm T1.9 (Canon EF, Meter)Rokinon's Xeen 20mm T1. 9 Lens with Canon EF Mount is built specifically for use as a cinema lens. It features an internal focus design so that the lens does not change size while focusing, this minimizes the appearance of breathing when changing focus. Each lens in the set is multi coated for good contrast, glare prevention, and color match to a factory standard, allowing you to assemble a set over time with minimal color shift. This 20mm lens