rayHawk G4's ultra fine optical coating improves uniformity for consistent brightness across the entirety of the screen's surface. The neutral density gray base dramatically increases black levels, shadow detailing and overall color saturation, providing the viewer with maximum resolution and superb image quality. GrayHawk G4 is an excellent tool for lowering the black floor with high output projectors without losing off-axis performance and viewing cone width. This fabric will offer superior performance with moderate ambient light.