 | Dual Masking Electrols (tensioned) are excellent for video projection applications. Ideal for home theaters or where a variety of image formats are projected. View from "Letterbox" to "NTSC" format or from "HDTV" to "NTSC" format with concealed-in-the-ceiling screen. Second motor lowers and raises black masks into position to convert screen to different format. Patented in-the-roller motor mounting system for quiet operation. 110.15" Diagonal, Screen Gain: 1, Dual Vision Surface, Angle of View: 100°, 54" x 96" Viewing Area Number of Reviews: 0 | Ratings:  | Best deal: $3825 $3825 - $3825 from 1 stores. |