Screen innovations Black Diamond (BD14)In a bright environment Black Diamond absorbs all unwanted ambient light in a room. Ambient light is absorbed above, below, and even in the path of the projector, allowing the screen to maintain and preserve the projectors contrast. 900% Better Contrast Black Diamond measured a 900% increase in contrast (S&V magazine) over matte white or gray screens. No other screen achieves these results. Maintained ISF Calibration Black Diamond maintains a more