The 50-100mm T2 Zoom Lens is ideal for the latest digital cine cameras. Its wide focal length offers full-frame sensor coverage, 6K-8K resolution, and a T2 aperture in a compact form. A 95mm front diameter is similar to that of the other cine lenses and is compatible with matte boxes. The body is made completely of metal to stand up to tough professional use over the long term. The filter size is standardized at 82mm, allowing users to use the same size of ND filter on different lenses. High-Speed Zoom Lens The high-speed zoom lens offers a constant aperture of T2 throughout the zoom range, and its outstanding optical performance makes them fully ready for high-resolution shooting in 6K-8K. While offering the highest image quality in its class, this zoom lens is compact and offer amazing value. 6K-8K Resolution The lens features the same optical system that delivers 50MP or higher resolution in still photography. This lens is therefore ready for higher-resolution shooting and is ideal for chroma keying as well. Standardized Color Balance The T2 Lens is designed to comply with SIGMAs CCI standard. Standardized color balance makes color correction a snap. 180 Focus Rotational Angle At 180, the rotational angle of the focus ring is more than double that of a still camera lens, making possible extremely high-precision focusing. The lens is optimized even easier long distance focusing. 160 Zoom Rotational Angle At 160, the rotational angle of the zoom ring is more than double that of a still camera lens, making possible extremely high-precision zooming.