This application has been designed as a starting point, to assist in narrowing down Draper’s various screen surfaces. It’s not a substitute for in-person consultation, but it is a pretty in-depth online tool for exploring various screen types and surfaces using many different parameters. You can toggle between different audience viewing styles. The app will also ask questions such as: Will the audience be more than 25° from the center of the projection screen (50° viewing cone)? You can add in the amount of ambient light that will be on the projection screen, choose the native format of the projector, factor if the projector will be in front or behind the screen surface, and many more variables. Free.
http://www.draperinc.com/ProjectionScreens/SurfaceSelector.aspx
