46Before Setting Up Your Projector1-3-2. Calculating the lens zoom magnification to useThe lens zoom magnification required when installing the projector is calculated using the following method.(1) Calculate the lens zoom magnification for SCOPE projection.(2) Calculate the lens zoom magnification for VISTA (FLAT) and HDTV projection.(3) Select the lens that satisfies the zoom magnification calculated in (1) and (2).SCOPE projection:Lensmagnification = Length of projection (L)Screen width (W)VISTA (FLAT)/HDTV projection:Lensmagnification = Length of projection (L)Screen width (W) × (2048 ÷ (Number of pixels per horizontal line × 2))Note: Number of pixels per horizontal line: 1998 for VISTA (FLAT); 1920 for HDTVSelect a lens that meets the magnification requirement for SCOPE, VISTA (FLAT), and HDTV screen types.Screen width (W)Screen height (H)ProjectorLength of projection (L)ScreenLength centerlineCenterlines
