The Optoma HD81 combines the finest 1080p DLP® home theater projector with a studio-quality imaging processor. Featuring Texas Instruments’ DarkChip3™ technology, the HD81 offers a superb projection solution. The HD81’s two-piece design delivers remarkable, personalized adjustment setting to achieve deeper blacks, higher precision and brilliant high-contrast images. Advanced 1080p DarkChip3 DMD DLP technology Bright 1400 lumens and 10000:1 contrast ratio delivers subtle details and vibrant images 16-step auto and manual iris Extensive connectivity options through image processor includes: three HDMI plus one external HDMI expansion, two BNC component, two component, three s-video, three composite video, one VGA, RS-232, two 12V triggers, one IR port extension This 2-piece design simplifies installation IR remote control with discrete IR codes for source and format, selection perfect for home theater automation ISFccc (Imaging Science Foundation's Certified Calibration Configuration)