Use the tables here to determine approximately how far to place the projector from the screen based on
the size of the projected image. (Conversion figures may have been rounded up or down.)
PowerLite 1830/1915
4:3 Aspect Ratio Image or Screen
Screen or image size Projection distance (1) Offset from lens center (2)
Wide to Tele
30 inches (76.2 cm) 38 to 62 inches -1.6 inches (-4 cm)
(96 to 158 cm)
40 inches (101.6 cm) 51 to 84 inches -2.2 inches (-6 cm)
(130 to 212 cm)
50 inches (127 cm) 64 to 105 inches -2.7 inches (-7 cm)
(164 to 267 cm)
60 inches (152.4 cm) 78 to 126 inches -3.3 inches (-8 cm)
(197 to 321 cm)
80 inches (203.2 cm) 104 to 169 inches -4.4 inches (-11 cm)
(265 to 430 cm)
100 inches (254 cm) 131 to 212 inches -5.5 inches (-14 cm)
(332 to 538 cm)
150 inches (381 cm) 197 to 319 inches -8.2 inches (-21 cm)
(501 to 810 cm)
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