Elite Screens CineGrey5D, Angular Reflective and Ambient Light Rejecting Front Projection Screen Material Sample (CINEGREY5D-SM) Gain: 1.5, View Angle: 80 (L&R 40) 4K Ultra HD, HDR, and Active 3D Ready Angular-Reflective and Ambient Light Rejecting technology, 88% polarization retention Perfect companion piece for Airflex5D - 2D/3D Multi-Projector Stacking System to form as a professional grade passive 3D system. Product Availability: Starling Tab-Tension 2 CineGrey 5D, Designer Cut Series