 | The Horizon Electrol® is the first screen available allowing four-position masking with the touch of a button. Dry contacts are provided on the electronic controller so you can adjust the screen to the factory presets from a properly equipped projector or master control. Careful engineering ensures the masking remains flush against the surface of the screen, preventing distracting shadows around the image. 180" Diagonal, Aspect Ratio: 4:3, Screen Gain: 2.8, High Power Surface, Angle of View: 50°, 105" x 140" Viewing Area Number of Reviews: 0 | Ratings:  | Best deal: $4765 $4765 - $4765 from 1 stores. |