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Setting up
32
- ENGLISH
Getting Started
If the projector is used with a screen size not listed in this manual, check the diagonal dimension (m) of your
screen and calculation the projection distance using the following formula.
Calculation formulas for projection distance by lens types
J
(for EZ570 series)
Lens type Aspect ratio Projection distance (L) formula
The standard zoom
lens
16:10
Min. (LW) L= 1.390824 x SD(m) - 0.055300
Max. (LT) L= 2.363170 x SD(m) - 0.048000
16:9
Min. (LW) L= 1.429494 x SD(m) - 0.055300
Max. (LT) L= 2.428874 x SD(m) - 0.048000
4:3
Min. (LW) L= 1.574521 x SD(m) - 0.055300
Max. (LT) L= 2.675292 x SD(m) - 0.048000
Fixed-focus Lens ET-ELW21
16:10 L= 0.676950 x SD(m) - 0.058500
16:9 L= 0.695771 x SD(m) - 0.058500
4:3 L= 0.766360 x SD(m) - 0.058500
Short Zoom Lens ET-ELW20
16:10
Min. (LW) L= 1.054401 x SD(m) - 0.055800
Max. (LT) L= 1.435954 x SD(m) - 0.054000
16:9
Min. (LW) L= 1.083717 x SD(m) - 0.055800
Max. (LT) L= 1.475879 x SD(m) - 0.054000
4:3
Min. (LW) L= 1.193663 x SD(m) - 0.055800
Max. (LT) L= 1.625612 x SD(m) - 0.054000
Long Zoom Lens ET-ELT20
16:10
Min. (LW) L= 2.364811 x SD(m) - 0.114200
Max. (LT) L= 3.859024 x SD(m) - 0.112900
16:9
Min. (LW) L= 2.430561 x SD(m) - 0.114200
Max. (LT) L= 3.966318 x SD(m) - 0.112900
4:3
Min. (LW) L= 2.677150 x SD(m) - 0.114200
Max. (LT) L= 4.368715 x SD(m) - 0.112900
Ultra Long Zoom Lens ET-ELT21
16:10
Min. (LW) L= 3.865178 x SD(m) - 0.213200
Max. (LT) L= 6.141781 x SD(m) - 0.210900
16:9
Min. (LW) L= 3.972643 x SD(m) - 0.213200
Max. (LT) L= 6.312543 x SD(m) - 0.210900
4:3
Min. (LW) L= 4.375682 x SD(m) - 0.213200
Max. (LT) L= 6.952973 x SD(m) - 0.210900