WIDE ASPECT AND HIGHEST BRIGHTNESS Wide XGA resolution makes it possible to Projectorect both HD video contents and wide aspect PC without any setting adjustment. PLCWM5500/ L has an HDMI terminal which is the most popular terminal for video sources. Its higher light efficiency and superior cooling technology allows for the highest brightness (5500 Lm) in its class.   FLEXIBLE INSTALLATION  This units is Equipped with power vertical and horizontal lens shift/keystone correction. Also 5 lens options* along with the standard lens make this a very flexible Projectorector. *PLC-WM5500 includes a standard lens (LNS-S20)   EASY MAINTENANCE - ACTIVE MAINTENANCE FILTER The well-known AMF system detects air blockage or clogs, then advances the filter reel to the next clean filter on the cartridge. Each cartridge carries 10 filter slides which dramatically lowers maintenance.   DURABLE IN-ORGANIC OPTICAL SYSTEM (D.I.O.S.) This Inorganic Optical LCD panel system provides a more durable Projectorector to handle many applications for high-quality, high contrast image presentations.   PICTURE IN PICTURE (P in P), PICTURE BY PICTURE (P by P) This function makes it possible to Projectorect two different sources with one Projectorector. Video conference, satellite lecture type of application should be suitable with using this function.   MECHANICAL SHUTTER SYSTEM The amazing PLC-WM5500/L fills the needs of a host of demanding business venues including meeting, entertainment and promotional applications with a Mechanical Shutter System.   CLOSED CAPTION The PLC-WM5500/L is Closed Caption compatible.