BenQ TK850 Quick Start Guide - Page 6

Installation Projection dimensions 16:9 Screen diagonal H Screen Center of lens W Vertical Offset Projection distance • The screen aspect ratio is 4:3 and the projected picture is in a 4:3 aspect ratio Screen size Distance from screen (mm) Diagonal Inch mm H W (mm) (mm) Min length (max. zoom) Average Max length (min. zoom) 30 762 374 664 750 863 976 40 1016 498 886 1001 1151 1302 50 1270 623 1107 1251 1439 1627 60 1524 747 1328 1501 1727 1953 70 1778 872 1550 1751 2015 2278 80 2032 996 1771 2001 2302 2603 90 2286 1121 1992 2251 2590 2929 100 2540 1245 2214 2502 2878 3254 110 2794 1370 2435 2752 3166 3580 120 3048 1494 2657 3002 3454 3905 130 3302 1619 2878 3252 3741 4231 140 3556 1743 3099 3502 4029 4556 150 3810 1868 3321 3752 4317 4881 160 4064 1992 3542 4003 4605 5207 170 4318 2117 3763 4253 4893 5532 180 4572 2241 3985 4503 5180 5858 190 4826 2366 4206 4753 5468 6183 200 5080 2491 4428 5003 5756 6509 210 5334 2615 4649 5253 6044 6834