[Pre Order - allow extra time] Optoma Technology ZK810ST 8500-Lumen UHD 4K Short-Throw Laser DLP Projector Brightness of 8500 Lumens, UHD 4K 3840 x 2160 Native Resolution, 0.65 to 0.75:1 Short-Throw Ratio, DuraCore 30,000-Hour Laser Light, 2 x HDMI...