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26 - ENGLISH
Getting Started
■ Projection distance calculation formula per projection lens (for PT-DW730U)
Lens type Aspect ratio Projection distance (L) formula
Standard zoom lens –
16:10
Min. (LW) L = 1.5669 x SD (m) – 0.0746
Max. (LT) L = 2.1850 x SD (m) – 0.0725
16:9
Min. (LW) L = 1.6102 x SD (m) – 0.0746
Max. (LT) L = 2.2480 x SD (m) – 0.0725
4:3
Min. (LW) L = 1.7717 x SD (m) – 0.0746
Max. (LT) L = 2.4724 x SD (m) – 0.0725
Fixed-focus lens Model No.: ET-DLE055
16:10 – L = 0.7244 x SD (m) – 0.0476
16:9 – L = 0.7441 x SD (m)
– 0.0476
4
:3 – L = 0.8189 x SD (m) – 0.0476
Ultra short-focus zoom lens
Model No.: ET-DLE080
16:10
Min. (LW) L = 0.7205 x SD (m) – 0.0471
Max. (LT) L = 0.8937 x SD (m) – 0.0442
16:9
Min. (LW) L = 0.7402 x SD (m) – 0.0471
Max. (LT) L = 0.9173 x SD (m) – 0.0442
4:3
Min. (LW) L = 0.8150 x SD (m) – 0.0471
Max. (LT) L = 1.0118 x SD (m) – 0.0442
Short-focus zoom lens Model No.: ET-DLE150
16:10
Min. (LW) L = 1.1811 x SD (m) – 0.
0540
M
ax. (LT) L = 1.7047 x SD (m) – 0.0498
16:9
Min. (LW) L = 1.2165 x SD (m) – 0.0540
Max. (LT) L = 1.7520 x SD (m) – 0.0498
4:3
Min. (LW) L = 1.3386 x SD (m) – 0.0540
Max. (LT) L = 1.9291 x SD (m) – 0.0498
Medium-focus zoom lens Model No.: ET-DLE250
16:10
Min. (LW) L = 2.0630 x SD (m) – 0.0800
Max. (LT) L = 3.2598 x SD (m) – 0.0792
16:9
Min. (LW) L = 2.1220 x SD (m) – 0.0800
Max. (LT) L = 3.3504 x SD (m) – 0.0792
4:3
Mi
n. (LW
) L = 2.3386 x SD (m) – 0.0800
Max. (LT) L = 3.6929 x SD (m) – 0.0792
Long-focus zoom lens Model No.: ET-DLE350
16:10
Min. (LW) L = 3.2559 x SD (m) – 0.1351
Max. (LT) L = 4.9173 x SD (m) – 0.1346
16:9
Min. (LW) L = 3.3465 x SD (m) – 0.1351
Max. (LT) L = 5.0551 x SD (m) – 0.1346
4:3
Min. (LW) L = 3.6850 x SD (m) – 0.1351
Max. (LT) L = 5.5669 x SD (m) – 0.1346
Ultra long-focus zoom lens
Model No.: ET-DLE450
16:10
Min
. (LW
) L = 4.9291 x SD (m) – 0.3017
Max. (LT) L = 7.7913 x SD (m) – 0.2991
16:9
Min. (LW) L = 5.0630 x SD (m) – 0.3017
Max. (LT) L = 8.0079 x SD (m) – 0.2991
4:3
Min. (LW) L = 5.5787 x SD (m) – 0.3017
Max. (LT) L = 8.8189 x SD (m) – 0.2991