The OPTOMA's EH512 is a 5,000 lumens Lumen Full HD DLP projector that delivers 1080p images for sharper, clearer images and presentations. Its basic 1920 x 1080 resolution clearly displays data and images at a variety of viewing distances, and its 15,000:1 dynamic contrast ratio helps to bring out detail in dark scenes. With a throw ratio of 1.41 to 2.24:1, you may set the projector quite close to the screen without losing focus. Besides that , Office documents, PDFs, and photos from USB storage devices are shown using a PC-free image viewer and document reader. Wireless screen mirroring with Android, Mac OS, and Windows devices is possible with HDCast Pro connectivity.