Epson PowerLite 8000i User Manual page 77

To determine the projection distance when you know the diagonal size
of the screen image:
Short Throw Zoom Lens Calculations (ELPLW01)
To determine the maximum and minimum diagonal size of an image
when you know the projection distance:
To determine the projection distance when you know the diagonal size
of the screen image:
Inches:
Maximum projection distance = (3.492
Minimum projection distance = (2.053
Centimeters:
Maximum projection distance = (8.8696
Minimum projection distance = (5.214
Inches:
Maximum diagonal size = (0.876
Minimum diagonal size = (0.730
Centimeters:
Maximum diagonal size = (2.2250
Minimum diagonal size = (1.8542
Inches:
Maximum projection distance = (1.369
Minimum projection distance = (1.142
Centimeters:
Maximum projection distance = (3.4772
Minimum projection distance = (2.9006 diagonal size) - 11.0007
diagonal size) - 5.091
diagonal size) - 4.795
diagonal size) - 12.9311
diagonal size) - 12.1793
projection distance) + 3.793
projection distance) + 3.029
projection distance) + 9.6342
projection distance) + 7.6936
diagonal size) - 4.147
diagonal size) - 4.331
diagonal size) - 10.5333
Positioning the Projector
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