Epson PowerLite 8000i User Manual page 76

Long Throw Zoom Lens Calculations (ELPLL02)
2 • Using the Projector
66
For example, here are the measurements for three installations:
Image size (diagonal)
300 inches* (762 cm)
200 inches (508 cm)
100 inches (254 cm)
* 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.
To determine the maximum and minimum diagonal size of an image
when you know the projection distance:
Inches:
Maximum diagonal size = (0.487
Minimum diagonal size = (0.286
Centimeters:
Maximum diagonal size = (1.2369
Minimum diagonal size = (0.7264
Horizontal distance from projector to screen
Minimum
460.6 inches (11.7 m)
307.1 inches (7.8 m)
153.5 inches (3.9 m)
projection distance) + 2.336
projection distance) + 1.458
projection distance) + 5.9334
projection distance) + 3.7033
Maximum
586.6 inches (14.9 m)
389.8 inches (9.9 m)
192.9 inches (4.9 m)