Epson EPL7250 User Manual - Page 74

For example, here are the measurements for three installations: Image size (diagonal) 300 inches* (762 cm) 200 inches (508 cm) 100 inches (254 cm) Horizontal distance from projector to screen Minimum Maximum 487.3 inches (12.4 m) 656.0 inches (16.7 m) 324.1 inches (8.2 m) 436.5 inches (11.1 m) 160.8 inches (4.1 m) 217.1 inches (5.5 m) * For an image size of 300 inches, the projector may be up to 54 feet away from the screen, depending on the setting of the zoom ring. Long Throw Zoom Lens Calculations If you are using the optional long throw zoom lens, use the following formulas instead: To determine the minimum and maximum diagonal size of an image when you know the projection distance: ❐ Inches: Maximum diagonal size = (0.4742 × projection distance) + 3.2489 Minimum diagonal size = (0.2849 × projection distance) + 1.8968 ❐ Centimeters: Maximum diagonal size = (1.2045 × projection distance) + 8.2522 Minimum diagonal size = (0.7236 × projection distance) + 4.8179 66 2 • Using the Projector