While the Rokinon 35mm T1.5 Cine As Umc Lens for Canon Ef is primarily engineered for film and video applications, it also excels in a variety of photography settings. This high-quality lens is a cine version of Rokinon's 35mm lens, featuring industry-standard gearing for the focus and aperture ring. The aperture ring has been de-clicked for smooth iris pulls, enhancing the user's control over the depth of field and exposure.The aperture and focus scales have been strategically relocated to the side of the lens, making it easier for focus pullers to read them, thereby improving the efficiency and accuracy of your shoots. This versatile lens is compatible with full-frame sensors, but it can also be used on Aps-c-sized sensors, where the 35mm-equivalent focal length will be 56mm, offering a unique perspective and flexibility in framing.The lens boasts an optical construction that incorporates two high refractive index elements and one aspherical element.