Specify projection optics that match the demands of high-brightness ProAV systems. The Epson ELPLU04 lens is a short zoom #2 option built for installations where precise throw control matters across WUXGA and 4K projection environments. For WUXGA systems, the lens supports throw ratios of 0.87-1.05 for projectors under 9,000 lumens and 0.64-0.77 for systems from 9,000 to 20,000 lumens. For 4K projection, it supports 0.62-0.75 for projectors up to 20,000 lumens. That range gives AV teams the flexibility to align image size and projector placement without forcing the room design around the optics. This is the kind of lens chosen when the installation needs more than basic projection. In boardrooms, auditoriums, control spaces, and other premium environments, optical fit is part of the system value. The ELPLU04 helps deliver that fit with a short zoom profile suited to high-lumen Epson ProAV deployments.