4:3 Aspect Ratio - NTSC or Video Format

1.0 to 1.33 or 4:3 – The 4:3 or NTSC aspect ratio matches the same screen shape as the traditional (Non-High Definition) television sets or computer (SVGA, XGA, UXGA) resolution. The dimensions of 4:3 are identical to the field of vision for a pair of human eyes. Despite its longevity, this format is being phased out in favor of 16:9 and 16:10 aspect ratios for tv and projectors in both home add commercial design. Select this format screen if you are using a native SVGA, XGA or UXGA projector for your presentations. This is also ideal for either older or lower cost commercial projectors as they may likely have a native NTSC format.