The EIKI LNS-T10 is a professional-grade optical accessory that provides significant installation flexibility for compatible EIKI projectors (such as the LC-XT series). The 2.12 to 3.39:1 throw ratio classifies it as a long-throw zoom lens, suitable for venues where the projector must be placed far back from the screen. The high-quality optics ensure that the projected image maintains excellent clarity, sharpness, and brightness across large screen sizes. The zoom and focus functions are typically motorized when installed in the projector chassis, allowing for precise, remote adjustments during the setup phase. This robust accessory enables professional AV installers to adapt standard projector systems to challenging architectural constraints without compromising image quality.