Projection Screen Formats - The Guide Why are there different projection screen formats? The projected picture has a certain width to height ratio depending on the type of projection being used. Consult your local dealer on what ratio the projection machine you are about to purchase has. What projection screen formats are there? There are three most common projection screen formats. 1:1 4:3 16:9 Multibrackets Europe AB has them all in the product range, both manual and motorized projection screens. M Motorized Projection Screen 1:1 M Motorized Projection Screen 4:3 M Motorized Projection Screen 16:9 M Manual Projection Screen 4:3 M Manual Projection Screen 16:9 M Portable Projection Screen 1:1 M Portable Projection Screen 4:3 M Portable Projection Screen 16:9 M Framed Projection Screen 1:1 M Framed Projection Screen 4:3 M Framed Projection Screen 16:9 What is the visual difference between formats? The visual difference is in the width to height ratio. Which projection screen format is the right one? 1:1 - Overhead projector. Standard format. 4:3 - Beamer. Video format. 16:9 - Home entertainment projector. Widescreen picture format. 2.35:1 - Home cinema projector. Cinema format widescreen picture format. Projection Screen Terms - FAQ