The ViewSonic® PJD5234 is the ideal projector in the office or on the campus. It delivers amazingly clear images with 3000 ANSI lumens, 15000:1 contrast ratio and XGA 1024x768 native solution. The PJD5234 is packed with features including HDMI®, multiple PC and video input options, 1.1x optical zoom, keystone correction, 3D Blu-ray ready, support HD signal, integrated speaker and DynamicEco™. With DynamicEco™ technology, presenters can put the projector in "standby" mode by reducing brightness down to 30% when they need to shift audience’s focus or when the projector is not in use without restarting the projector. Filter-less design and energy-saving Eco-mode provide for virtually zero maintenance and product reliability. Slim design, 3.7" high with only 4.7 lbs, makes the PJD5234 the perfect projector for tabletop use or ceiling mounting in both classrooms and corporate offices.