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Setting up
ENGLISH - 39
Getting Started
To use a screen size not listed in this manual, check the screen size SD and use the following formula to calculate
projection distance.
The unit of the calculation result is m.
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Formula to calculate projection distance per projection lens (for PT-DZ21KE)
Projection lens Throw ratio Aspect ratio Projection distance (L) formula
Zoom lens
ET-D75LE1
1.4 to 1.8:1 16:10
Min. (LW) L = 1.1732 x SD (m) – 0.0760
Max. (LT) L = 1.5709 x SD (m) – 0.1004
1.4 to 1.8:1 16:9
Min. (LW) L = 1.2087 x SD (m) – 0.0760
Max. (LT) L = 1.6142 x SD (m) – 0.1004
1.6 to 2.2:1 4:3
Min. (LW) L = 1.3307 x SD (m) – 0.0760
Max. (LT) L = 1.7756 x SD (m) – 0.1004
ET-D75LE2
1.8 to 2.8:1 16:10
Min. (LW) L = 1.5748 x SD (m) – 0.0795
Max. (LT) L = 2.3661 x SD (m) – 0.1064
1.8 to 2.8:1 16:9
Min. (LW) L = 1.6220 x SD (m) – 0.0795
Max. (LT) L = 2.4291 x SD (m) – 0.1064
2.2 to 3.3:1 4:3
Min. (LW) L = 1.7835 x SD (m) – 0.0795
Max. (LT) L = 2.6772 x SD (m) – 0.1064
ET-D75LE3
2.8 to 4.6:1 16:10
Min. (LW) L = 2.3661 x SD (m) – 0.0958
Max. (LT) L = 3.9488 x SD (m) – 0.1216
2.8 to 4.6:1 16:9
Min. (LW) L = 2.4291 x SD (m) – 0.0958
Max. (LT) L = 4.0591 x SD (m) – 0.1216
3.3 to 5.5:1 4:3
Min. (LW) L = 2.6772 x SD (m) – 0.0958
Max. (LT) L = 4.4724 x SD (m) – 0.1216
ET-D75LE4
4.6 to 7.4:1 16:10
Min. (LW) L = 3.9488 x SD (m) – 0.1158
Max. (LT) L = 6.2795 x SD (m) – 0.1013
4.6 to 7.4:1 16:9
Min. (LW) L = 4.0591 x SD (m) – 0.1158
Max. (LT) L = 6.4528 x SD (m) – 0.1013
5.6 to 8.9:1 4:3
Min. (LW) L = 4.4724 x SD (m) – 0.1158
Max. (LT) L = 7.1102 x SD (m) – 0.1013
ET-D75LE8
7.3 to 13.8:1 16:10
Min. (LW) L = 6.2795 x SD (m) – 0.3862
Max. (LT) L = 11.7677 x SD (m) – 0.3598
7.3 to 13.8:1 16:9
Min. (LW) L = 6.4567 x SD (m) – 0.3862
Max. (LT) L = 12.0945 x SD (m) – 0.3598
8.8 to 16.5:1 4:3
Min. (LW) L = 7.1102 x SD (m) – 0.3862
Max. (LT) L = 13.3189 x SD (m) – 0.3598
ET-D75LE6
0.9 to 1.1:1 16:10
Min. (LW) L = 0.7913 x SD (m) – 0.0566
Max. (LT) L = 0.9488 x SD (m) – 0.0736
0.9 to 1.1:1 16:9
Min. (LW) L = 0.8150 x SD (m) – 0.0566
Max. (LT) L = 0.9764 x SD (m) – 0.0736
1.1 to 1.3:1 4:3
Min. (LW) L = 0.8976 x SD (m) – 0.0566
Max. (LT) L = 1.0748 x SD (m) – 0.0736
ET-D75LE10
1.3 to 1.7:1 16:10
Min. (LW) L = 1.1181 x SD (m) – 0.0857
Max. (LT) L = 1.4449 x SD (m) – 0.1085
1.3 to 1.7:1 16:9
Min. (LW) L = 1.1496 x SD (m) – 0.0857
Max. (LT) L = 1.4843 x SD (m) – 0.1085
1.6 to 2.0:1 4:3
Min. (LW) L = 1.2677 x SD (m) – 0.0857
Max. (LT) L = 1.6378 x SD (m) – 0.1085
ET-D75LE20
1.7 to 2.4:1 16:10
Min. (LW) L = 1.4331 x SD (m) – 0.0832
Max. (LT) L = 2.0787 x SD (m) – 0.1162
1.7 to 2.4:1 16:9
Min. (LW) L = 1.4724 x SD (m) – 0.0832
Max. (LT) L = 2.1378 x SD (m) – 0.1162
2.0 to 2.9:1 4:3
Min. (LW) L = 1.6220 x SD (m) – 0.0832
Max. (LT) L = 2.3543 x SD (m) – 0.1162
ET-D75LE30
2.4 to 4.7:1 16:10
Min. (LW) L = 2.0630 x SD (m) – 0.1131
Max. (LT) L = 4.0039 x SD (m) – 0.1765
2.4 to 4.7:1 16:9
Min. (LW) L = 2.1220 x SD (m) – 0.1131
Max. (LT) L = 4.1142 x SD (m) – 0.1765
2.9 to 5.6:1 4:3
Min. (LW) L = 2.3386 x SD (m) – 0.1131
Max. (LT) L = 4.5315 x SD (m) – 0.1765