Da-Lite Model C HDTV Format Manual Wall and Ceiling Screen, 65" x 116", 133" ...

Electric This is a motorized projection screen that can be rolled down when needed and concealed by being rolled up with the use of a button or a remote control. When planning a home entertainment viewing environment that is also used for other purposes, this could be a good choice combined with a motorized projector lift, so that both components can be concealed when not in use. Fixed Also known as fixed-frame, these projector screens are permanently mounted into the wall or cabinetry and are a good choice for a dedicated home entertainment environment where no concealment of the screen is required. Manual These projection screens are manually retractable, and can be pulled down or concealed within a dedicated housing with the use of an attached handle. Portable These projection screens are provided with a dedicated tripod mount and can be carried around and placed in any environment. Rear Projection These projection screens are a part of a Projection system that requires that the projector will be concealed within a cavity in the wall behind them. These can be a good choice for home entertainment or business environments in which the concealment of everything that is not directly viewable is required.

Screen gain is the ability of a screen to redirect light to an audience. Flat or matte white walls have low gains, meaning they are generally less bright but can be seen from very wide angles. Screens with higher gains reflect much more light and therefore appear brighter to users, but do not have a very wide viewing angle. Curved screens generally have the highest gains.