The Christie 140-115108-01 is a short zoom lens designed for large-venue projectors where installation space is extremely constrained, yet a very large image is required. With a minimal zoom ratio of 1.02-1.36:1, it functions almost as a near-fixed lens but provides a crucial small amount of adjustment for fine-tuning the image size and alignment during installation. This "short zoom" characteristic defines it as an ultra-short-throw or very-short-throw lens, allowing the projector to be positioned exceptionally close to the screen—often just a fraction of the screen's width away. This capability is indispensable in environments like tight control rooms, rear-projection cabinets with limited depth, interactive floors or tables, and architectural installations where the projector must be hidden or placed directly above or below the screen.

Engineered for high-brightness Christie projectors, this lens is built with precision optics to handle the intense light output and maintain image sharpness and geometric accuracy across the entire projected area, which is critical when projecting from such an acute angle. The metal-barrel construction ensures durability in permanent installations. The minimal zoom range allows for a relatively large maximum aperture, enabling high light transmission to preserve the projector's lumen output, which is often vital in these short-throw scenarios to combat potential brightness falloff at the screen edges. By enabling large-scale projection from mere inches away, the Christie 140-115108-01 solves unique spatial challenges, allowing for immersive and seamless visual displays where traditional projectors simply cannot fit.