BenQ HT3550 User Manual - Page 12

Obtaining a preferred projected image size The distance from the projector lens to the screen, the zoom setting (if available), and the video format each factors in the projected image size. Projection dimensions 16:9 Screen diagonal H Screen Center of lens W Vertical Offset Projection distance • The screen aspect ratio is 16:9 and the projected picture is in a 16:9 aspect ratio Screen size Diagonal Inch mm H (mm) 30 762 374 40 1016 498 50 1270 623 60 1524 747 70 1778 872 80 2032 996 90 2286 1121 100 2540 1245 110 2794 1370 120 3048 1494 130 3302 1619 140 3556 1743 150 3810 1868 160 4064 1992 170 4318 2117 180 4572 2241 190 4826 2366 200 5080 2491 210 5334 2615 220 5588 2740 230 5842 2864 240 6096 2989 250 6350 3113 260 6604 3238 270 6858 3362 280 7112 3487 290 7366 3611 300 7620 3736 W (mm) 664 886 1107 1328 1550 1771 1992 2214 2435 2657 2878 3099 3321 3542 3763 3985 4206 4428 4649 4870 5092 5313 5535 5756 5977 6199 6420 6641 Distance from screen (mm) Min length (max. zoom) Average Max length (min. zoom) 750 863 976 1001 1151 1302 1251 1439 1627 1501 1727 1953 1751 2015 2278 2001 2302 2603 2251 2590 2929 2502 2878 3254 2752 3166 3580 3002 3454 3905 3252 3741 4231 3502 4029 4556 3752 4317 4881 4003 4605 5207 4253 4893 5532 4503 5180 5858 4753 5468 6183 5003 5756 6509 5253 6044 6834 5504 6331 7159 5754 6619 7485 6004 6907 7810 6254 7195 8136 6504 7483 8461 6754 7770 8787 7004 8058 9112 7255 8346 9437 7505 8634 9763 For example, if you are using a 120-inch screen, the recommended projection distance is 3454 mm. 12 Positioning your projector