Epson 8000i User Manual
Page 78
Advertising
![background image](/manuals/88083/78/background.png)
2 • Using the Projector
68
Fixed Short Throw Lens Calculations (ELPLR01)
To determine the diagonal size of an image when you know the
projection distance:
❐
Inches:
Diagonal size = (1.239
×
projection distance) + 3.415
❐
Centimeters:
Diagonal size = (3.1470
×
projection distance) + 8.6741
To determine the projection distance when you know the diagonal size
of the screen image:
❐
Inches:
Projection distance = (0.807
×
diagonal size) - 2.756
❐
Centimeters:
Projection distance = (2.0497
×
diagonal size) - 7.0002
80009000.book Page 68 Monday, November 1, 1999 9:35 AM
Advertising