BenQ MX717 DLP Projector User Manual - Page 16

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. If you need a 4:3 screen to project a 4:3 picture and your measured projection distance is 4000 mm, please refer to Table A1 on page 16. The closest match in the "Distance from screen (mm)" column is 4246 mm. Looking across this row shows that a 120'' (about 3.0 m) screen is required. Projection dimensions Refer to "Dimensions" on page 60 for the center of lens dimensions of this projector before calculating the appropriate position. A1 Maximum zoom Minimum zoom Screen Center of lens Vertical offset Projection distance Table A1: The screen aspect ratio is 4:3 and the projected picture is 4:3 Screen size Size of the projected image Distance from screen (mm) Diagonal Inch mm H (mm) W (mm) Min length Max length (max. zoom) Average (min. zoom) 40 1016 610 813 1231 1415 1600 50 1270 762 1016 1538 1769 2000 60 1524 914 1219 1846 2123 2400 70 1778 1067 1422 2154 2477 2800 80 2032 1219 1626 2462 2831 3200 90 2286 1372 1829 2769 3185 3600 100 2540 1524 2032 3077 3538 4000 120 3048 1829 2438 3692 4246 4800 150 3810 2286 3048 4615 5308 6000 200 5080 3048 4064 6154 7077 8000 250 6350 3810 5080 7692 8846 10000 300 7620 4572 6096 9231 10615 12000 Vertical offset (mm) 46 57 69 80 91 103 114 137 171 229 286 343 There is 3% tolerance among these numbers due to optical component variations. BenQ recommends that if you intend to permanently install the projector, you should physically test the projection size and distance using the actual projector in situ before you permanently install it, so as to make allowance for this projector's optical characteristics. This will help you determine the exact mounting position so that it best suits your installation location. Downlo1a6ded PForosmitiopnrionjgecytooru-rmparnoujeacl.tcoorm BenQ Manuals