Epson 8100i - Manual (Page 108)

102 Technical Specifications
Short Throw Zoom Lens (ELPLW01)
To determine the diagonal size of an image when you know the
projection distance:
■ Inches:
Maximum diagonal size = (0.876
×
projection distance) + 3.8
Minimum diagonal size = (0.730
×
projection distance) + 3.0
■ Centimeters:
Maximum diagonal size = (0.876
×
projection distance) + 9.6
Minimum diagonal size = (0.730
×
projection distance) + 7.7
To determine the projection distance when you know the diagonal
size of the screen image:
■ Inches:
Maximum projection distance = (1.369
×
diagonal size) – 4.1
Minimum projection distance = (1.142
×
diagonal size) – 4.3
■ Centimeters:
Maximum projection distance = (1.369
×
diagonal size) – 10.5
Minimum projection distance = (1.142
×
diagonal size) – 11.0
Fixed Short Throw Lens (ELPLR01)
To determine the diagonal size of an image when you know the
projection distance:
■ Inches:
Diagonal size = (1.239
×
projection distance) + 3.4
■ Centimeters:
Diagonal size = (1.239
×
projection distance) + 8.7
To determine the projection distance when you know the diagonal
size of the screen image:
■ Inches:
Projection distance = (0.807
×
diagonal size) – 2.8
■ Centimeters:
Projection distance = (0.807
×
diagonal size) – 7.0