BenQ TK800 User Manual - Page 12
Obtaining a preferred projected image size, Projection dimensions
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Obtaining a preferred projected image size The distance from the projector lens to the screen, the zoom setting, and the video format each factors in the projected image size. Projection dimensions • The screen aspect ratio is 16:9 and the projected picture is in a 16:9 aspect ratio 16:9 Screen diagonal Screen H Center of lens W Vertical offset Projection distance Screen size Distance from screen (mm) Diagonal Inch mm Min length H (mm) W (mm) (max. zoom) Average Max length Vertical offset (mm) (min. zoom) 30 762 374 664 976 1073 1169 37 40 1016 498 886 1302 1430 1559 50 50 1270 623 1107 1627 1788 1948 62 60 1524 747 1328 1953 2145 2338 75 70 1778 872 1550 2278 2503 2727 87 80 2032 996 1771 2603 2860 3117 100 90 2286 1121 1992 2929 3218 3507 112 100 2540 1245 2214 3254 3575 3896 125 110 2794 1370 2435 3580 3933 4286 137 120 3048 1494 2657 3905 4290 4676 149 130 3302 1619 2878 4231 4648 5065 162 140 3556 1743 3099 4556 5005 5455 174 150 3810 1868 3321 4881 5363 5844 187 160 4064 1992 3542 5207 5720 6234 199 170 4318 2117 3763 5532 6078 6624 212 180 4572 2241 3985 5858 6436 7013 224 190 4826 2366 4206 6183 6793 7403 237 200 5080 2491 4428 6509 7151 7793 249 210 5334 2615 4649 6834 7508 8182 262 220 5588 2740 4870 7159 7866 8572 274 230 5842 2864 5092 7485 8223 8961 286 240 6096 2989 5313 7810 8581 9351 299 250 6350 3113 5535 8136 8938 9741 311 260 6604 3238 5756 8461 9296 10130 324 270 6858 3362 5977 8787 9653 10520 336 280 7112 3487 6199 9112 10011 10910 349 290 7366 3611 6420 9437 10368 11299 361 300 7620 3736 6641 9763 10726 11689 374 For example, if you are using a 120-inch screen, the recommended projection distance is 4290 mm. If your measured projection distance is 500 cm, the closest match in the "Distance from screen (mm)" column is 5005 mm. Looking across this row shows that a 140'' (about 3.6 m) screen is required. 12 Positioning your projector