Chapter 2Getting Started — Setting up

Projection lens Model No.

Throw ratio

Aspect ratio

 

Projection distance (L) formula

 

 

4:3

Min. (LW)

 

L = 1.4618 x SD - 0.0832

ET‑D75LE20

1.8 to 2.6:1

Max. (LT)

 

L = 2.1241 x SD - 0.1162

 

 

16:9

Min. (LW)

 

L = 1.5924 x SD - 0.0832

 

 

 

 

 

Max. (LT)

 

L = 2.3137 x SD - 0.1162

 

 

 

 

 

 

4:3

Min. (LW)

 

L = 2.1089 x SD - 0.1131

ET‑D75LE30

2.6 to 5.1:1

Max. (LT)

 

L = 4.0899 x SD - 0.1765

 

 

16:9

Min. (LW)

 

L = 2.2972 x SD - 0.1131

 

 

 

 

 

Max. (LT)

 

L = 4.4552 x SD - 0.1765

 

 

 

 

 

 

4:3

Min. (LW)

 

L = 4.0379 x SD - 0.1577

ET‑D75LE40

5.0 to 8.0:1

Max. (LT)

 

L = 6.4377 x SD - 0.1615

 

 

16:9

Min. (LW)

 

L = 4.3985 x SD - 0.1577

 

 

 

 

 

Max. (LT)

 

L = 7.0126 x SD - 0.1615

 

 

 

 

rrFixed-focus lens

Projection lens Model No.

Throw ratio

Aspect ratio

Projection distance (L) formula

ET‑D75LE5

0.8:1

4:3

L = 0.6220 x SD - 0.0835

16:9

L = 0.6772 x SD - 0.0835

 

 

ET‑D75LE50

0.8:1

4:3

L = 0.6202 x SD - 0.0713

16:9

L = 0.6755 x SD - 0.0713

 

 

For PT‑DW11KU

rrZoom lens

Projection lens Model No.

Throw ratio

Aspect ratio

 

Projection distance (L) formula

 

1.5 to 2.0:1

16:9

Min. (LW)

 

L = 1.3504 x SD - 0.0760

ET‑D75LE1

Max. (LT)

 

L = 1.8031 x SD - 0.1004

 

 

 

2.0 to 2.7:1

4:3

Min. (LW)

 

L = 1.6496 x SD - 0.0760

 

 

 

Max. (LT)

 

L = 2.2047 x SD - 0.1004

 

 

 

 

 

2.1 to 3.1:1

16:9

Min. (LW)

 

L = 1.8110 x SD - 0.0795

ET‑D75LE2

Max. (LT)

 

L = 2.7126 x SD - 0.1064

 

 

 

2.7 to 4.1:1

4:3

Min. (LW)

 

L = 2.2165 x SD - 0.0795

 

 

 

Max. (LT)

 

L = 3.3228 x SD - 0.1064

 

 

 

 

 

3.1 to 5.2:1

16:9

Min. (LW)

 

L = 2.7126 x SD - 0.0958

ET‑D75LE3

Max. (LT)

 

L = 4.5315 x SD - 0.1216

 

 

 

4.1 to 6.9:1

4:3

Min. (LW)

 

L = 3.3228 x SD - 0.0958

 

 

 

Max. (LT)

 

L = 5.5472 x SD - 0.1216

 

 

 

 

 

5.2 to 8.2:1

16:9

Min. (LW)

 

L = 4.5315 x SD - 0.1158

ET‑D75LE4

Max. (LT)

 

L = 7.2087 x SD - 0.1013

 

 

 

6.9 to 11.0:1

4:3

Min. (LW)

 

L = 5.5472 x SD - 0.1158

 

 

 

Max. (LT)

 

L = 8.8228 x SD - 0.1013

 

 

 

 

 

8.2 to 15.4:1

16:9

Min. (LW)

 

L = 7.2087 x SD - 0.3862

ET‑D75LE8

Max. (LT)

 

L = 13.5039 x SD - 0.3598

 

 

 

10.9 to 20.5:1

4:3

Min. (LW)

 

L = 8.8228 x SD - 0.3862

 

 

 

Max. (LT)

 

L = 16.5354 x SD - 0.3598

 

 

 

 

 

1.0 to 1.2:1

16:9

Min. (LW)

 

L = 0.9094 x SD - 0.0566

ET‑D75LE6

Max. (LT)

 

L = 1.0906 x SD - 0.0736

 

 

 

1.4 to 1.6:1

4:3

Min. (LW)

 

L = 1.1142 x SD - 0.0566

 

 

 

Max. (LT)

 

L = 1.3346 x SD - 0.0736

 

 

 

 

 

1.4 to 1.9:1

16:9

Min. (LW)

 

L = 1.2759 x SD - 0.0857

ET‑D75LE10

Max. (LT)

 

L = 1.6491 x SD - 0.1085

 

 

 

1.9 to 2.5:1

4:3

Min. (LW)

 

L = 1.5620 x SD - 0.0857

 

 

 

Max. (LT)

 

L = 2.0190 x SD - 0.1085

 

 

 

 

44 - ENGLISH