User's Manual

2 • Using the Projector
66
For example, here are the measurements for three installations:
* For an image size of 300 inches, the projector may be up to 52.1 feet away from
the screen, depending on the setting of the zoom ring.
Long Throw Zoom Lens Calculations (ELPLL02)
To determine the maximum and minimum diagonal size of an image
when you know the projection distance:
❐ Inches:
Maximum diagonal size = (0.487 × projection distance) + 2.336
Minimum diagonal size = (0.286 × projection distance) + 1.458
❐ Centimeters:
Maximum diagonal size = (1.2369 × projection distance) + 5.9334
Minimum diagonal size = (0.7264 × projection distance) + 3.7033
Image size (diagonal)
Horizontal distance from projector to screen
Minimum Maximum
300 inches* (762 cm) 460.6 inches (11.7 m) 586.6 inches (14.9 m)
200 inches (508 cm) 307.1 inches (7.8 m) 389.8 inches (9.9 m)
100 inches (254 cm) 153.5 inches (3.9 m) 192.9 inches (4.9 m)
80009000.book Page 66 Monday, November 1, 1999 9:35 AM