The Rokinon Xeen 16mm T2.6 Lens is made to use with Canon EF-mount cine cameras. It provides a diagonal view of 106.91° with a full-frame sensor and 87.43° on a Super 35 sensor camera. The lens has an internal focus design that makes it possible to use optional clip-on matte boxes. You can employ focus pulls from both the sides with the dual right- and left-side focus and T-stop scales. 11 aperture blades provide a smooth bokeh. Moreover, the clickless iris blade offers fluid iris pulls. You can focus on an object from a minimum distance of 12 inches. All the XEEN series lenses have common focus and iris gear ring positions for quick lens switching.