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Lens type
Projection lens Model No.
Throw ratio
*2
Projected image size
Height
Diagonal (SD)
(SH)
1.27 (50")
0.762
1.52 (60")
0.914
1.78 (70")
1.067
2.03 (80")
1.219
2.29 (90")
1.372
2.54 (100")
1.524
3.05 (120")
1.829
3.81 (150")
2.286
5.08 (200")
3.048
6.35 (250")
3.810
7.62 (300")
4.572
8.89 (350")
5.334
10.16 (400")
6.096
12.70 (500")
7.620
15.24 (600")
9.144
*1 When the Fixed-focus Lens (Model No.: ET-DLE035C) is attached, the projection relation between the screen and the projector differs from that of
other lenses. Refer to "Fixed-focus Lens (Model No.: ET-DLE035C)" (x page 32) for details.
*2 The throw ratio is based on the value during projection of 2.03 m (80") projected image size. When the Fixed-focus Lens (Model No.: ET-DLE035C)
is attached, the throw ratio is based on the value during projection of 2.54 m (100") projected image size.
*3 When the Fixed-focus Lens (Model No.: ET-DLE055C) is attached, the lens shift is not possible, therefore the height position (H) becomes the fixed
value of SH/2.
Formula for calculating the projection distance per projection lens
To use a projected image size not listed in this manual, check the projected image size SD (m) and use the
respective formula to calculate projection distance.
The unit of all the formulae is m. (Values obtained by the following calculation formulae contain a slight error.)
When calculating a projection distance using image size designation (value in inches), multiply the value in inches
by 0.0254 and substitute it into SD in the formula for calculating the projection distance.
r Zoom lens
Projection lens Model No.
Standard zoom lens
ET-DLE060C
ET-DLE085C
ET-DLE105C
ET-DLE150C
ET-DLE250C
ET-DLE350C
Chapter 2 Getting Started — Setting up
Fixed-focus Lens
ET-DLE055C
0.946:1
Projection
Height
Projection
distance
position
distance
Width
(L)
(H)
*3
(SW)
1.016
0.94
0.38
1.219
1.14
0.46
1.422
1.34
0.53
1.626
1.54
0.61
1.829
1.74
0.69
2.032
1.93
0.76
2.438
2.33
0.91
3.048
2.93
1.14
4.064
3.92
1.52
5.080
—
—
6.096
—
—
7.112
—
—
8.128
—
—
10.160
—
—
12.192
—
—
Throw ratio
Aspect ratio
1.71 - 2.41:1
16:10
1.72 - 2.41:1
16:9
2.06 - 2.90:1
0.600 - 0.801:1
16:10
0.600 - 0.802:1
16:9
0.724 - 0.965:1
0.782 - 0.977:1
16:10
0.783 - 0.977:1
16:9
0.943 - 1.18:1
0.978 - 1.32:1
16:10
0.979 - 1.32:1
16:9
1.18 - 1.59:1
1.30 - 1.89:1
16:10
1.30 - 1.89:1
16:9
1.56 - 2.27:1
2.27 - 3.62:1
16:10
2.27 - 3.62:1
16:9
2.73 - 4.35:1
3.58 - 5.45:1
16:10
3.58 - 5.45:1
16:9
4.30 - 6.55:1
ET-DLE035C
*1
0.456:1
Distance from the
projector to the
screen
(L1)
(L4)
(A1)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0.93
0.22
0.50
1.11
0.41
0.61
1.39
0.68
0.78
1.85
1.14
1.06
2.31
1.60
1.35
2.77
2.07
1.63
3.23
2.53
1.92
—
—
—
—
—
—
—
—
—
Projection distance (L) formula
Min. (LW)
= 1.4906 x SD - 0.0746
= 1.5320 x SD - 0.0746
4:3
= 1.6874 x SD - 0.0746
= 0.5354 x SD - 0.0549
= 0.5503 x SD - 0.0549
4:3
= 0.6062 x SD - 0.0549
= 0.6865 x SD - 0.0471
= 0.7056 x SD - 0.0471
4:3
= 0.7772 x SD - 0.0471
= 0.8543 x SD - 0.0511
= 0.8781 x SD - 0.0511
4:3
= 0.9672 x SD - 0.0511
= 1.1259 x SD - 0.0540
= 1.1572 x SD - 0.0540
4:3
= 1.2747 x SD - 0.0540
= 1.9665 x SD - 0.0800
= 2.0212 x SD - 0.0800
4:3
= 2.2263 x SD - 0.0800
= 3.1000 x SD - 0.1351
= 3.1862 x SD - 0.1351
4:3
= 3.5094 x SD - 0.1351
(Unit: m)
Max. (LT)
= 2.0814 x SD - 0.0725
= 2.1393 x SD - 0.0725
= 2.3563 x SD - 0.0725
= 0.7047 x SD - 0.0518
= 0.7243 x SD - 0.0518
= 0.7978 x SD - 0.0518
= 0.8498 x SD - 0.0442
= 0.8735 x SD - 0.0442
= 0.9621 x SD - 0.0442
= 1.1457 x SD - 0.0472
= 1.1775 x SD - 0.0472
= 1.2970 x SD - 0.0472
= 1.6243 x SD - 0.0498
= 1.6695 x SD - 0.0498
= 1.8388 x SD - 0.0498
= 3.1059 x SD - 0.0792
= 3.1923 x SD - 0.0792
= 3.5161 x SD - 0.0792
= 4.6843 x SD - 0.1346
= 4.8146 x SD - 0.1346
= 5.3030 x SD - 0.1346
ENGLISH - 39
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