The Rokinon Xeen 50mm T1.5 Lens is best-suited for shooting both indoor and outdoor scenes with your Canon EF-mount cinema camera. This lens gives a diagonal view of 31.2° with a Super 35 sensor camera and 46.2° with a full-frame sensor camera. Thanks to its internal focusing design, the length of this lens remains the same, thus allowing you to use a matte box or other focus accessories on the front 114mm front diameter. The calibrated right- and left-side focus and T-stop scales make it easy to use smooth focus pulls without flipping the lens. This lens also ensures a fluid operation for the 11-blade aperture. You can take a clear shot of the subject in the frame from a minimum distance of 18 inches. As all the XEEN series lenses come with standard focus and iris gear ring positions, it is easy for you to switch from one lens to another.