The Christie 104-113101-01 is a high-performance, large-aperture zoom lens engineered for high-brightness, high-resolution projectors used in demanding large-venue applications. Its optical design is optimized for specific DLP projector models, providing the flexibility to adjust the image size without moving the projector over a 2-2.8:1 zoom range, which is critical for installers working within the constraints of auditoriums, large houses of worship, rental/staging setups, and command & control centers. The lens features a very large maximum aperture (F/0.95) which allows for maximum light transmission from the projector's light engine, ensuring that brightness is maintained even when projecting over long distances or onto very large screens. This is essential for maintaining image visibility and contrast in environments with ambient light.

Constructed with precision-ground glass elements and housed in a robust metal barrel, the lens is built for durability in both fixed installations and touring environments. It includes manual controls for zoom, focus, and lens shift, allowing for precise on-site alignment and calibration. The specific compatibility with 0.95" SXGA+ and HD DLP imagers means it is designed to fully resolve the native resolution of these projectors, delivering sharp, detailed imagery from edge to edge. By providing a combination of a wide zoom range, a fast aperture for brightness retention, and professional-grade mechanical construction, this lens is a key component for system integrators and rental companies who need to tailor the projection system to the venue while preserving the highest possible image quality and light output.