Chapter 2Getting Started — Setting up

Projection lens Model No.

Throw ratio

Aspect ratio

 

Projection distance (L) formula

 

2.4 to 4.7:1

16:10

Min. (LW)

 

L = 2.0647 x SD - 0.1131

 

Max. (LT)

 

L = 4.0041 x SD - 0.1765

 

 

 

 

ET‑D75LE30

2.4 to 4.7:1

16:9

Min. (LW)

 

L = 2.1221 x SD - 0.1131

Max. (LT)

 

L = 4.1155 x SD - 0.1765

 

 

 

 

 

2.9 to 5.6:1

4:3

Min. (LW)

 

L = 2.3374 x SD - 0.1131

 

Max. (LT)

 

L = 4.5330 x SD - 0.1765

 

 

 

 

 

4.6 to 7.4:1

16:10

Min. (LW)

 

L = 3.9532 x SD - 0.1577

 

Max. (LT)

 

L = 6.3027 x SD - 0.1615

 

 

 

 

ET‑D75LE40

4.6 to 7.4:1

16:9

Min. (LW)

 

L = 4.0631 x SD - 0.1577

Max. (LT)

 

L = 6.4779 x SD - 0.1615

 

 

 

 

 

5.5 to 8.9:1

4:3

Min. (LW)

 

L = 4.4754 x SD - 0.1577

 

Max. (LT)

 

L = 7.1351 x SD - 0.1615

 

 

 

 

rrFixed-focus lens

Projection lens Model No.

Throw ratio

Aspect ratio

Projection distance (L) formula

 

0.7:1

16:10

L = 0.6063 x SD - 0.0835

ET‑D75LE5

0.7:1

16:9

L = 0.6220 x SD - 0.0835

 

0.8:1

4:3

L = 0.6850 x SD - 0.0835

 

0.7:1

16:10

L = 0.6072 x SD - 0.0713

ET‑D75LE50

0.7:1

16:9

L = 0.6240 x SD - 0.0713

 

0.8:1

4:3

L = 0.6873 x SD - 0.0713

For PT‑DS12KU

rrZoom lens

Projection lens Model No.

Throw ratio

Aspect ratio

 

Projection distance (L) formula

 

 

4:3

Min. (LW)

 

L = 1.2087 x SD - 0.0760

ET‑D75LE1

1.5 to 2.0:1

Max. (LT)

 

L = 1.6142 x SD - 0.1004

 

 

16:9

Min. (LW)

 

L = 1.3150 x SD - 0.0760

 

 

 

 

 

Max. (LT)

 

L = 1.7559 x SD - 0.1004

 

 

 

 

 

 

4:3

Min. (LW)

 

L = 1.6220 x SD - 0.0795

ET‑D75LE2

2.0 to 3.0:1

Max. (LT)

 

L = 2.4291 x SD - 0.1064

 

 

16:9

Min. (LW)

 

L = 1.7638 x SD - 0.0795

 

 

 

 

 

Max. (LT)

 

L = 2.6457 x SD - 0.1064

 

 

 

 

 

 

4:3

Min. (LW)

 

L = 2.4291 x SD - 0.0958

ET‑D75LE3

3.0 to 5.0:1

Max. (LT)

 

L = 4.0591 x SD - 0.1216

 

 

16:9

Min. (LW)

 

L = 2.6457 x SD - 0.0958

 

 

 

 

 

Max. (LT)

 

L = 4.4213 x SD - 0.1216

 

 

 

 

 

 

4:3

Min. (LW)

 

L = 4.0591 x SD - 0.1158

ET‑D75LE4

5.0 to 8.0:1

Max. (LT)

 

L = 6.4528 x SD - 0.1013

 

 

16:9

Min. (LW)

 

L = 4.4213 x SD - 0.1158

 

 

 

 

 

Max. (LT)

 

L = 7.0315 x SD - 0.1013

 

 

 

 

 

7.9 to 15.0:1

4:3

Min. (LW)

 

L = 6.4567 x SD - 0.3862

ET‑D75LE8

Max. (LT)

 

L = 12.0945 x SD - 0.3598

 

 

 

8.0 to 15.0:1

16:9

Min. (LW)

 

L = 7.0315 x SD - 0.3862

 

 

 

Max. (LT)

 

L = 13.1732 x SD - 0.3598

 

 

 

 

 

 

4:3

Min. (LW)

 

L = 0.8150 x SD - 0.0566

ET‑D75LE6

1.0 to 1.2:1

Max. (LT)

 

L = 0.9764 x SD - 0.0736

 

 

16:9

Min. (LW)

 

L = 0.8858 x SD - 0.0566

 

 

 

 

 

Max. (LT)

 

L = 1.0630 x SD - 0.0736

 

 

 

 

 

 

4:3

Min. (LW)

 

L = 1.1425 x SD - 0.0857

ET‑D75LE10

1.4 to 1.8:1

Max. (LT)

 

L = 1.4767 x SD - 0.1085

 

 

16:9

Min. (LW)

 

L = 1.2446 x SD - 0.0857

 

 

 

 

 

Max. (LT)

 

L = 1.6086 x SD - 0.1085

 

 

 

 

ENGLISH - 43