A variety of image formats demand different sizes of images. The Horizon is the first screen available allowing four position masking with the touch of a button. Precise engineering ensures the masking remains flush against the surface of the screen, preventing distracting shadows around the projected image. The use of a programmable motor system allows the viewing surface to adjust to maintain the screen centerline. Available in Da-Mat, High Contrast Da-Mat, Cinema Vision, Pearlescent and Audio Vision fabrics, these screens come standard with 12" extra drop above the viewing area. Custom sizes and additional drop may be ordered.