Utilizing four high-output 250 watt UHP lamps as its light source, the PLC-XF42 delivers an incredible 9000 ANSI lumens of brightness. Through its new high-contrast optical system, the PLC-XF42 is able to achieve an outstanding contrast ratio of 1, 100: 1. A 10- bit digital gamma correction circuit is employed to effectively suppress overwhelming whites in bright images and excessive blacks in dark images. An optional network board allows for simple control and management of the projector via a CAT5 network connection. The network board, which can memorize and store up to 55 PC modes, can also be used in parallel with RS-232 controllers. The Real Color Manager PRO System provides color correction and gamma correction from a PC using the included image adjustment software. Attaching the included One-Touch lens mount adapters to your projector and lenses makes installation and removal of the optional lenses quick and easy. A newly developed liquid crystal panel with an optical compensator that creates linear polarization, together with improved optical block cooling system, gives the PLC-XF42 the capability of being operated on a 24/7 basis.