The Manual Series (non-electric) projection screen features a professional-grade material that provides uniform brightness over a wide (180°) viewing angle. It comes out of the box fully assembled and requires a minimal effort to install.
This video demonstration was filmed at Compton High School with thanks to the AP Human Geography class. It follows the story of an M136XWS1 (136" 1:1 aspect ratio) manual projector screen out of the box and onto the wall and demonstrates how its variable height settings will create a variety of aspect ratios depending on the native format of the projected content.
The Manual series of projection screens come with either a white or black casing and is available in 71" to 170" sizes with a selection of aspect ratios. This includes 1:1 (squared), 4:3 (NTSC), 16:10 (WXGA), 16:9 (HDTV), or 2.35:1 (Widescreen) aspect ratios.