da-lite high power model b manual screen - 72 x 72 av format
dl6645 features perfect for classroom and meeting room facilities . easy pull-down system locks at intervals to fit a variety of projection formats nylon bearings provide smooth quiet operation for the life of the screen . case design allows for hanging from a ceiling or flush mounting to a wall . pull cord included . screen material high power a technological breakthrough providing the reflectivity and optical characteristics of a traditional glass beaded surface with the ability to clean the surface when necessary . its smooth textured surface provides the highest gain of all front projection screen surfaces with no resolution loss . the moderate viewing angle and its ability to reflect light back along the projection axis make this surface the best choice for situations where there is a moderate amount of ambient light and the projector is placed on a table-top or in the same horizontal viewing plane as the audience . flame retardant and mildew resistant . viewing angle 30 gain 2.4