Acer X1278H User Manual - Page 21

English 11 How to optimize image size and distance • XGA series Consult the table below to find the optimal image sizes achievable when the projector is positioned at a desired distance from the screen. If the projector is 2.0 m from the screen, good image quality is possible for image sizes between 46" and 50". Note: Remind as below figure, the space of 100 cm height is required when located at 2.0 m distance. Max screen size Min screen size 50" B 46" A 2.0 m Desired Distance Height: 100 cm from base to Height: top of image 91 cm C Screen size Top Screen size Top Desired Distance (Min zoom) (Max zoom) (m) Diagonal (inch) W (cm) x H (cm) From base to top of image (cm) Diagonal (inch) W (cm) x H (cm) From base to top of image (cm) 1.5 34 70 x 53 68 38 77 x 58 75 2 46 93 x 70 91 50 103 x 77 100 2.5 57 117 x 88 114 63 128 x 96 125 3 69 140x 105 137 76 154 x 115 150 3.5 80 164 x 123 159 88 179 x 135 175 4 92 187 x 140 182 101 205 x 154 200 4.5 103 210 x 158 205 114 231 x 173 225 5 115 234 x 175 228 126 256 x 192 250 6 138 280 x 210 273 151 308 x 231 300 7 161 327 x 245 319 177 359 x 269 350 8 184 374 x 280 364 202 410 x 308 400 9 207 421 x 315 410 227 462 x 346 450 10 230 467 x 350 456 252 513 x 385 500 Zoom Ratio: 1.1x