Panasonic PT-RCQ10

Chapter 2 Getting Started — Setting up
50 - ENGLISH
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-DLE020
0.280 - 0.299:1 16:10 = 0.2438 x SD
- 0.0266 = 0.2612 x SD - 0.0279
0.280 - 0.299:1 16:9 = 0.2506 x SD
- 0.0266 = 0.2684 x SD - 0.0279
0.337 - 0.360:1 4:3 = 0.2760 x SD
- 0.0266 = 0.2957 x SD - 0.0279
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
ET-DLE450
5.36 - 8.58:1 16:10 = 4.6931 x SD
- 0.3017 = 7.4193 x SD - 0.2991
5.36 - 8.58:1 16:9 = 4.8236 x SD
- 0.3017 = 7.6256 x SD - 0.2991
6.46 - 10.3:1 4:3 = 5.3129 x SD
- 0.3017 = 8.3992 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
0.785:1 16:10 = 0.6893 x SD
- 0.0476
0.786:1 16:9 = 0.7084 x SD
- 0.0476
0.946:1 4:3 = 0.7803 x SD
- 0.0476
r Fixed-focus Lens (Model No.: ET-DLE035)
Projection lens Model No. Throw ratio Aspect ratio
Projection distance (L1)
formula
Distance (A1) formula from
the projector to the screen
ET-DLE035
0.380:1 16:10 = 0.3205 x SD + 0.0047 = 0.1977 x SD
- 0.0721
0.380:1 16:9 = 0.3294 x SD + 0.0047 = 0.2304 x SD
- 0.0721
0.456:1 4:3 = 0.3628 x SD + 0.0047 = 0.2238 x SD
- 0.0721