The Runco Telesto D Zoom Lens 1.71 is designed specifically for Runco SC and VX projectors, providing a power zoom focus function for precise and clear projection. This lens allows users to easily adjust the zoom level, ensuring a perfect fit for their needs. With a focus on quality and compatibility, the Runco Telesto D Zoom Lens 1.71 is a reliable choice for enhancing the viewing experience with projectors.