BenQ LX60ST Laser DLP Projector LX60ST and LW61ST User Manual - Page 15

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 Refer to "Dimensions" on page 54 for the center of lens dimensions of this projector before calculating the appropriate position. LX60ST Screen size Screen Center of lens Vertical offset Projection distance Screen size Diagonal W Inch mm (mm) 80 2032 1626 100 2540 2032 120 3048 2438 150 3810 3048 180 4572 3658 200 5080 4064 220 5588 4470 240 6096 4877 270 6858 5486 300 7620 6096 H (mm) 1219 1524 1829 2286 2743 3048 3353 3658 4115 4572 Distance from screen (mm) 988 1235 1481 1852 2222 2469 2716 2963 3333 3704 Vertical offset (mm) 183 229 274 343 411 457 503 549 617 686 For example, if you are using a 120-inch screen, the recommended projection distance is 1481 mm and the vertical offset is 274 mm. If your measured projection distance is 2.0 m (2000 mm), the closest match in the "Distance from screen (mm)" column is 1852 mm. Looking across this row shows that a 150'' (about 3.8 m) screen is required. Positioning your projector 15