HC7900DW 3D projectors feature quick-response DLP pixel elements that minimize crosstalk, preventing mixing of left and right eye images. High-definition images reproduce with nominal image lag for minimal judder. And flicker is reduced when the screen in white using an additional 120 Hz conversion process. All the pros, none of the potential 3D cons. The optical engine features comprehensively improved contrast and light leakage, achieving high contrast of 150,000:1. HC7900DW comes with both a variable and a fixed iris to deliver extra image contrast, while an impressive 1500 lm boosts high-resolution image quality. Plus, a color management function allows easy adjustment to this high definition home theater projector for hue, saturation and brightness.