draper high contrast grey rolleramic electric screen - av format 70 x 70
dr3923rolleramic heavy-duty motorized projection screen . ideal for auditoriums and lecture halls hospitals hotels churches and other large venues . all-wood case may be recessed in the ceiling or painted to match its surroundings . end-mounted direct-drive motor sits on rubber vibration insulators minimizing friction and noise . features with control options it can be operated from any remote location . ntsc format screens have black borders on all four sides . depending on surface available in sizes through 20 x 20 and 25 ntsc . optionally available in hdtv and widescreen format . custom sizes available . warranted for one year against defects in materials and workmanship . screen material high contrast grey grey textile backed surface offers excellent resolution while enhancing the blacks of lcd and dlp projected images even as whites and lighter colors are maintained . performs well in ambient light condition . high contrast grey s lower gain of 0.8 allows use with even the brightest projectors viewing cone of 180 . available on most non-tensioned motorized and manual screens seamless in sizes up to 8 in height . peak gain of 0.8 .