Panasonic PT-DW640EL Operating Instructions Manual page 33

Projection distance formulas by projection lens
To use a screen size not listed in this manual, check the screen size SD and use the following formula to calculate projection distance.
The unit of the calculation result is m.
For PT-DW640E
Lens type Projection lens Model No.
Standard zoom lens
Fixed-focus lens
Ultra-short focus zoom
lens
Short focus zoom lens
Medium focus zoom lens
Long focus zoom lens
Ultra-long focus zoom lens
For PT-DX610E
Lens type Projection lens Model No.
Standard zoom lens
Fixed-focus lens
Chapter 2 Getting Started — Setting up
Aspect ratio
16:10
― 16:9
4:3
16:10
ET-DLE055 16:9
4:3
16:10
ET-DLE080 16:9
4:3
16:10
ET-DLE150 16:9
4:3
16:10
ET-DLE250 16:9
4:3
16:10
ET-DLE350 16:9
4:3
16:10
ET-DLE450 16:9
4:3
Aspect ratio
4:3
―
16:9
4:3
ET-DLE055
16:9
Projection distance (L) formula
Min. (LW) L = 1.5630 x SD (m) – 0.0650
Max. (LT) L = 2.0630 x SD (m) – 0.0638
Min. (LW) L = 1.6063 x SD (m) – 0.0650
Max. (LT) L = 2.1220 x SD (m) – 0.0638
Min. (LW) L = 1.7717 x SD (m) – 0.0650
Max. (LT) L = 2.3346 x SD (m) – 0.0638
― L = 0.7244 x SD (m) – 0.0476
― L = 0.7441 x SD (m) – 0.0476
― L = 0.8189 x SD (m) – 0.0476
Min. (LW) L = 0.7205 x SD (m) – 0.0471
Max. (LT) L = 0.8937 x SD (m) – 0.0442
Min. (LW) L = 0.7402 x SD (m) – 0.0471
Max. (LT) L = 0.9173 x SD (m) – 0.0442
Min. (LW) L = 0.8150 x SD (m) – 0.0471
Max. (LT) L = 1.0118 x SD (m) – 0.0442
Min. (LW) L = 1.1811 x SD (m) – 0.0540
Max. (LT) L = 1.7047 x SD (m) – 0.0498
Min. (LW) L = 1.2165 x SD (m) – 0.0540
Max. (LT) L = 1.7520 x SD (m) – 0.0498
Min. (LW) L = 1.3386 x SD (m) – 0.0540
Max. (LT) L = 1.9291 x SD (m) – 0.0498
Min. (LW) L = 2.0630 x SD (m) – 0.0800
Max. (LT) L = 3.2598 x SD (m) – 0.0792
Min. (LW) L = 2.1220 x SD (m) – 0.0800
Max. (LT) L = 3.3504 x SD (m) – 0.0792
Min. (LW) L = 2.3386 x SD (m) – 0.0800
Max. (LT) L = 3.6929 x SD (m) – 0.0792
Min. (LW) L = 3.2559 x SD (m) – 0.1351
Max. (LT) L = 4.9173 x SD (m) – 0.1346
Min. (LW) L = 3.3465 x SD (m) – 0.1351
Max. (LT) L = 5.0551 x SD (m) – 0.1346
Min. (LW) L = 3.6850 x SD (m) – 0.1351
Max. (LT) L = 5.5669 x SD (m) – 0.1346
Min. (LW) L = 4.9291 x SD (m) – 0.3017
Max. (LT) L = 7.7913 x SD (m) – 0.2991
Min. (LW) L = 5.0630 x SD (m) – 0.3017
Max. (LT) L = 8.0079 x SD (m) – 0.2991
Min. (LW) L = 5.5787 x SD (m) – 0.3017
Max. (LT) L = 8.8189 x SD (m) – 0.2991
Projection distance (L) formula
Min. (LW) L = 1.4567 x SD (m) – 0.0650
Max. (LT) L = 1.9213 x SD (m) – 0.0638
Min. (LW) L = 1.5866 x SD (m) – 0.0650
Max. (LT) L = 2.0945 x SD (m) – 0.0638
― L = 0.6732 x SD (m) – 0.0476
― L = 0.7323 x SD (m) – 0.0476
ENGLISH - 33