BenQ MH534 User Manual - Page 17

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 Refer to "Dimensions" on page 69 for the center of lens dimensions of this projector before calculating the appropriate position. Diagonal Diagonal Screen H Center of lens W W Vertical offset Projection distance MS531/MX532/MS521H The screen aspect ratio is 4:3 and the projected picture is 4:3 Screen size Projection distance (mm) Vertical offset Diagonal W H Min Average Max (mm) (mm) (mm) distance distance Inch mm (max. (min. zoom) zoom) 30 762 610 457 1183 1298 1414 27 35 889 711 533 1380 1515 1650 32 40 1016 813 610 1577 1731 1886 37 50 1270 1016 762 1971 2164 2357 46 60 1524 1219 914 2365 2597 2829 55 80 2032 1626 1219 3154 3463 3771 73 100 2540 2032 1524 3942 4328 4714 91 120 3048 2438 1829 4730 5194 5657 110 150 3810 3048 2286 5913 6492 7071 137 200 5080 4064 3048 7884 8656 9428 183 220 5588 4470 3353 8673 9522 10371 201 250 6350 5080 3810 9855 10820 11786 229 300 7620 6096 4572 11826 12984 14143 274 For example, if your projector is MS531/MX532/MS521H and using a 120-inch screen, the average projection distance is 5194 mm and with a vertical offset of 110 mm. If your measured projection distance is 5.0 m (5000 mm), the closest match in the "Projection distance (mm)" column is 5194 mm. Looking across this row shows that a 120'' (about 3.0 m) screen is required. Positioning your projector 17