Panasonic PT-EZ570U Operating Instructions - Page 32
Calculation formulas for projection distance by lens types, for EZ570 series, Lens type, Aspect ratio
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Getting Started Setting up 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. JJCalculation formulas for projection distance by lens types (for EZ570 series) Lens type The standard zoom lens Fixed-focus Lens ET-ELW21 Short Zoom Lens ET-ELW20 Long Zoom Lens ET-ELT20 Ultra Long Zoom Lens ET-ELT21 Aspect ratio 16:10 16:9 4:3 16:10 16:9 4:3 16:10 16:9 4:3 16:10 16:9 4:3 16:10 16:9 4:3 Projection distance (L) formula Min. (LW) L= 1.390824 x SD(m) - 0.055300 Max. (LT) L= 2.363170 x SD(m) - 0.048000 Min. (LW) L= 1.429494 x SD(m) - 0.055300 Max. (LT) L= 2.428874 x SD(m) - 0.048000 Min. (LW) L= 1.574521 x SD(m) - 0.055300 Max. (LT) L= 2.675292 x SD(m) - 0.048000 L= 0.676950 x SD(m) - 0.058500 L= 0.695771 x SD(m) - 0.058500 L= 0.766360 x SD(m) - 0.058500 Min. (LW) L= 1.054401 x SD(m) - 0.055800 Max. (LT) L= 1.435954 x SD(m) - 0.054000 Min. (LW) L= 1.083717 x SD(m) - 0.055800 Max. (LT) L= 1.475879 x SD(m) - 0.054000 Min. (LW) L= 1.193663 x SD(m) - 0.055800 Max. (LT) L= 1.625612 x SD(m) - 0.054000 Min. (LW) L= 2.364811 x SD(m) - 0.114200 Max. (LT) L= 3.859024 x SD(m) - 0.112900 Min. (LW) L= 2.430561 x SD(m) - 0.114200 Max. (LT) L= 3.966318 x SD(m) - 0.112900 Min. (LW) L= 2.677150 x SD(m) - 0.114200 Max. (LT) L= 4.368715 x SD(m) - 0.112900 Min. (LW) L= 3.865178 x SD(m) - 0.213200 Max. (LT) L= 6.141781 x SD(m) - 0.210900 Min. (LW) L= 3.972643 x SD(m) - 0.213200 Max. (LT) L= 6.312543 x SD(m) - 0.210900 Min. (LW) L= 4.375682 x SD(m) - 0.213200 Max. (LT) L= 6.952973 x SD(m) - 0.210900 32 - ENGLISH