Epson PowerLite 8150i Administrator's Manual - Page 115
Inches, Centimeters, Extra Long Throw Zoom Lens ELPLL03
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To determine the projection distance when you know the diagonal size of the screen image: s Inches: Maximum projection distance = (3.492 × diagonal size) - 5.1 Minimum projection distance = (2.053 × diagonal size) - 4.8 s Centimeters: Maximum projection distance = (3.492 × diagonal size) - 12.9 Minimum projection distance = (2.053 × diagonal size) - 12.2 Extra Long Throw Zoom Lens (ELPLL03) To determine the diagonal size of an image when you know the projection distance: s Inches: Maximum diagonal size = (0.231 × projection distance) + 2.2 Minimum diagonal size = (0.171 × projection distance) + 1.7 s Centimeters: Maximum diagonal size = (0.231 × projection distance) + 5.7 Minimum diagonal size = (0.171 × projection distance) + 4.2 To determine the projection distance when you know the diagonal size of the screen image: s Inches: Maximum projection distance = (4.331 × diagonal size) - 9.7 Minimum projection distance = (5.850 × diagonal size) - 9.7 s Centimeters: Maximum projection distance = (4.331 × diagonal size) - 24.5 Minimum projection distance = (5.850 × diagonal size) - 24.7 Technical Specifications 113