Designed to fit all of your challenging multimedia needs, the Sharp Notevision XR-40 and XR 30 Series projectors provide superior features, performance and reliability. Built to handle most any business, education or cinema projection requirements, they utilize the Texas Instruments DDR DLP display technology in combination with TrueVision (DDP2000) image processing. The Condenser Lens Optical System provides a remarkable 2200:1 contrast ratio (2000:1 in XR-30S), along with crisp, bright and detailed images from both computer and video sources. Powerful standard features like DVI-D input, short-throw zoom lens, HDTV compatibility and up to 3000-hour lamp life make these Notevision projectors perfect for most every application. To enhance color accuracy, the XR Educator XR-30 and XR-40 series incorporate a 3X speed (maximum). This color wheel ensures that all projected images are uniform and void of the rainbow effect common in other projectors.