Panasonic PT-DW17K2 - Page 48

Chapter 2 Getting Started — Setting up
48 - ENGLISH
Projection lens Model No. Throw ratio Aspect ratio
Projection distance (L) formula
Min. (LW) Max. (LT)
ET-D75LE30
2.6 - 5.1:1 4:3 = 2.1089 x SD
- 0.1131 = 4.0899 x SD - 0.1765
2.6 - 5.1:1 16:9 = 2.2972 x SD
- 0.1131 = 4.4552 x SD - 0.1765
ET-D75LE40
5.0 - 8.0:1 4:3 = 4.0379 x SD
- 0.1577 = 6.4377 x SD - 0.1615
5.0 - 8.0:1 16:9 = 4.3985 x SD
- 0.1577 = 7.0126 x SD - 0.1615
ET-D75LE8
7.9 - 15.0:1 4:3 = 6.4567 x SD
- 0.3862 = 12.0945 x SD - 0.3598
8.0 - 15.0:1 16:9 = 7.1102 x SD
- 0.3862 = 13.3189 x SD - 0.3598
r Fixed-focus lens
Projection lens Model No. Throw ratio Aspect ratio
Projection distance
(L1) formula
Formula for distance between projector and
screen (A1)
Min. Max.
ET-D75LE90
0.39:1 4:3 = 0.310 x SD + 0.020 = 0.206 x SH
- 0.114
0.39:1 16:9 = 0.337 x SD + 0.020 = 0.275 x SH
- 0.114 = 0.441 x SH - 0.114
Projection lens Model No. Throw ratio Aspect ratio Projection distance (L) formula
ET-D75LE50
0.8:1 4:3 = 0.6202 x SD
- 0.0713
0.8:1 16:9 = 0.6755 x SD
- 0.0713
For PT-DW17K2
r Zoom lens
Projection lens Model No. Throw ratio Aspect ratio
Projection distance (L) formula
Min. (LW) Max. (LT)
ET-D75LE6
1.0 - 1.2:1 16:9 = 0.9094 x SD
- 0.0566 = 1.0906 x SD - 0.0736
1.4 - 1.6:1 4:3 = 1.1142 x SD
- 0.0566 = 1.3346 x SD - 0.0736
ET-D75LE10
1.4 - 1.9:1 16:9 = 1.2759 x SD
- 0.0857 = 1.6491 x SD - 0.1085
1.9 - 2.5:1 4:3 = 1.5620 x SD
- 0.0857 = 2.0190 x SD - 0.1085
ET-D75LE20
1.8 - 2.7:1 16:9 = 1.6324 x SD
- 0.0832 = 2.3720 x SD - 0.1162
2.5 - 3.6:1 4:3 = 1.9986 x SD
- 0.0832 = 2.9040 x SD - 0.1162
ET-D75LE30
2.7 - 5.2:1 16:9 = 2.3550 x SD
- 0.1131 = 4.5673 x SD - 0.1765
3.6 - 6.9:1 4:3 = 2.8833 x SD
- 0.1131 = 5.5917 x SD - 0.1765
ET-D75LE40
5.1 - 8.2:1 16:9 = 4.5092 x SD
- 0.1577 = 7.1891 x SD - 0.1615
6.8 - 10.9:1 4:3 = 5.5206 x SD
- 0.1577 = 8.8016 x SD - 0.1615
ET-D75LE8
8.2 - 15.4:1 16:9 = 7.2087 x SD
- 0.3862 = 13.5039 x SD - 0.3598
10.9 - 20.5:1 4:3 = 8.8228 x SD
- 0.3862 = 16.5354 x SD - 0.3598
r Fixed-focus lens
Projection lens Model No. Throw ratio Aspect ratio
Projection distance
(L1) formula
Formula for distance between projector and
screen (A1)
Min. Max.
ET-D75LE90
0.40:1 16:9 = 0.346 x SD + 0.020
= 0.282 x SH
- 0.114 = 0.466 x SH - 0.114
0.54:1 4:3 = 0.423 x SD + 0.020
Projection lens Model No. Throw ratio Aspect ratio Projection distance (L) formula
ET-D75LE50
0.8:1 16:9 = 0.6925 x SD
- 0.0713
1.0:1 4:3 = 0.8479 x SD
- 0.0713