Chapter 2
Getting Started — Setting up
ENGLISH - 45
(Unit: m)
Lens type
Fixed-focus Lens
Projection lens Model No.
ET-DLE055
ET-DLE035
*1
Throw ratio
*2
0.946:1
0.456:1
Projected image size
Projection
distance
(L)
Height
position
(H)
*3
Projection
distance
(L1)
Distance from the
projector to the
screen
Diagonal (SD)
Height
(SH)
Width
(SW)
(L4)
(A1)
1.27 (50")
0.762
1.016
0.94
0.38
―
―
―
1.52 (60")
0.914
1.219
1.14
0.46
―
―
―
1.78 (70")
1.067
1.422
1.34
0.53
―
―
―
2.03 (80")
1.219
1.626
1.54
0.61
―
―
―
2.29 (90")
1.372
1.829
1.74
0.69
―
―
―
2.54 (100")
1.524
2.032
1.93
0.76
0.93
0.22
0.50
3.05 (120")
1.829
2.438
2.33
0.91
1.11
0.41
0.61
3.81 (150")
2.286
3.048
2.93
1.14
1.39
0.68
0.78
5.08 (200")
3.048
4.064
3.92
1.52
1.85
1.14
1.06
6.35 (250")
3.810
5.080
―
―
2.31
1.60
1.35
7.62 (300")
4.572
6.096
―
―
2.77
2.07
1.63
8.89 (350")
5.334
7.112
―
―
3.23
2.53
1.92
10.16 (400")
6.096
8.128
―
―
―
―
―
12.70 (500")
7.620
10.160
―
―
―
―
―
15.24 (600")
9.144
12.192
―
―
―
―
―
*1
When the Fixed-focus Lens (Model No.: ET-DLE035) 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-DLE035)” (
x
page 38) 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-DLE035) 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-DLE055) 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.
Throw ratio
Aspect ratio
Projection distance (L) formula
Min. (LW)
Max. (LT)
Standard zoom lens/
ET-DLE170
1.71 - 2.41:1
16:10
= 1.4906 x SD - 0.0746
= 2.0814 x SD - 0.0725
1.72 - 2.41:1
16:9
= 1.5320 x SD - 0.0746
= 2.1393 x SD - 0.0725
2.06 - 2.90:1
4:3
= 1.6874 x SD - 0.0746
= 2.3563 x SD - 0.0725
ET-DLE060
0.600 - 0.801:1
16:10
= 0.5354 x SD - 0.0549
= 0.7047 x SD - 0.0518
0.600 - 0.802:1
16:9
= 0.5503 x SD - 0.0549
= 0.7243 x SD - 0.0518
0.724 - 0.965:1
4:3
= 0.6062 x SD - 0.0549
= 0.7978 x SD - 0.0518
ET-DLE085
0.782 - 0.977:1
16:10
= 0.6865 x SD - 0.0471
= 0.8498 x SD - 0.0442
0.783 - 0.977:1
16:9
= 0.7056 x SD - 0.0471
= 0.8735 x SD - 0.0442
0.943 - 1.18:1
4:3
= 0.7772 x SD - 0.0471
= 0.9621 x SD - 0.0442
ET-DLE105
0.978 - 1.32:1
16:10
= 0.8543 x SD - 0.0511
= 1.1457 x SD - 0.0472
0.979 - 1.32:1
16:9
= 0.8781 x SD - 0.0511
= 1.1775 x SD - 0.0472
1.18 - 1.59:1
4:3
= 0.9672 x SD - 0.0511
= 1.2970 x SD - 0.0472
ET-DLE150
1.30 - 1.89:1
16:10
= 1.1259 x SD - 0.0540
= 1.6243 x SD - 0.0498
1.30 - 1.89:1
16:9
= 1.1572 x SD - 0.0540
= 1.6695 x SD - 0.0498
1.56 - 2.27:1
4:3
= 1.2747 x SD - 0.0540
= 1.8388 x SD - 0.0498
ET-DLE250
2.27 - 3.62:1
16:10
= 1.9665 x SD - 0.0800
= 3.1059 x SD - 0.0792
2.27 - 3.62:1
16:9
= 2.0212 x SD - 0.0800
= 3.1923 x SD - 0.0792
2.73 - 4.35:1
4:3
= 2.2263 x SD - 0.0800
= 3.5161 x SD - 0.0792
ET-DLE350
3.58 - 5.45:1
16:10
= 3.1000 x SD - 0.1351
= 4.6843 x SD - 0.1346
3.58 - 5.45:1
16:9
= 3.1862 x SD - 0.1351
= 4.8146 x SD - 0.1346
4.30 - 6.55:1
4:3
= 3.5094 x SD - 0.1351
= 5.3030 x SD - 0.1346
