Chapter 2 Getting Started — Setting up
44 - ENGLISH
For PT‑RW730, PT‑RW620
r Standard zoom lens
Projection lens Model No. Throw ratio Aspect ratio
Projection distance (L) formula
Min. (LW) Max. (LT)
―
1.8 - 2.5:1 16:10 = 1.5651 x SD
-
0.0746 = 2.1855 x SD
-
0.0725
1.8 - 2.5:1 16:9 = 1.6086 x SD
-
0.0746 = 2.2462 x SD
-
0.0725
2.2 - 3.0:1 4:3 = 1.7715 x SD
-
0.0746 = 2.4736 x SD
-
0.0725
r Zoom Lens
Projection lens Model No. Throw ratio Aspect ratio
Projection distance (L) formula
Min. (LW) Max. (LT)
ET-DLE085
0.8 - 1.0:1 16:10 = 0.7209 x SD
-
0.0471 = 0.8923 x SD
-
0.0442
0.8 - 1.0:1 16:9 = 0.7409 x SD
-
0.0471 = 0.9171 x SD
-
0.0442
1.0 - 1.2:1 4:3 = 0.8159 x SD
-
0.0471 = 1.0100 x SD
-
0.0442
ET-DLE150
1.4 - 2.0:1 16:10 = 1.1822 x SD
-
0.0540 = 1.7055 x SD
-
0.0498
1.4 - 2.0:1 16:9 = 1.2151 x SD
-
0.0540 = 1.7529 x SD
-
0.0498
1.6 - 2.4:1 4:3 = 1.3381 x SD
-
0.0540 = 1.9304 x SD
-
0.0498
ET-DLE250
2.4 - 3.8:1 16:10 = 2.0649 x SD
-
0.0800 = 3.2612 x SD
-
0.0792
2.4 - 3.8:1 16:9 = 2.1223 x SD
-
0.0800 = 3.3519 x SD
-
0.0792
2.9 - 4.6:1 4:3 = 2.3371 x SD
-
0.0800 = 3.6912 x SD
-
0.0792
ET-DLE350
3.8 - 5.7:1 16:10 = 3.2550 x SD
-
0.1351 = 4.9185 x SD
-
0.1346
3.8 - 5.7:1 16:9 = 3.3455 x SD
-
0.1351 = 5.0553 x SD
-
0.1346
4.5 - 6.9:1 4:3 = 3.6842 x SD
-
0.1351 = 5.5671 x SD
-
0.1346
ET-DLE450
5.6 - 9.0:1 16:10 = 4.9277 x SD
-
0.3017 = 7.7903 x SD
-
0.2991
5.6 - 9.0:1 16:9 = 5.0647 x SD
-
0.3017 = 8.0069 x SD
-
0.2991
6.8 - 10.8:1 4:3 = 5.5775 x SD
-
0.3017 = 8.8174 x SD
-
0.2991
r Fixed-focus Lens (Model No.: ET-DLE055)
Projection lens Model No. Throw ratio Aspect ratio Projection distance (L) formula
ET-DLE055
0.8:1 16:10 = 0.7237 x SD
-
0.0476
0.8:1 16:9 = 0.7438 x SD
-
0.0476
1.0:1 4:3 = 0.8191 x SD
-
0.0476
r Fixed-focus Lens (Model No.: ET-DLE030)
Projection lens Model No. Throw ratio Aspect ratio
Projection distance (L1)
formula
Formula for distance between
projector and screen (A1)
ET-DLE030
0.40:1 16:10 = 0.3365 x SD + 0.0047 = 0.2597 x SD
-
0.0740
0.40:1 16:9 = 0.3459 x SD + 0.0047 = 0.2942 x SD
-
0.0740
0.48:1 4:3 = 0.3809 x SD + 0.0047 = 0.2941 x SD
-
0.0740
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