Started Getting

Setting up

Projection lens

Throw ratio

Aspect ratio

 

Projection distance (L) formula

 

 

4.6 to 7.4:1

16:10

Min. (LW)

L = 3.9528 x SD (m) – 0.1577

 

 

Max. (LT)

L = 6.3031 x SD (m) – 0.1615

 

 

 

 

Zoom Lens

ET-D75LE40

4.6 to 7.4:1

16:9

Min. (LW)

L = 4.0630 x SD (m) – 0.1577

Max. (LT)

L = 6.4764 x SD (m) – 0.1615

 

 

 

 

 

 

5.5 to 8.9:1

4:3

Min. (LW)

L = 4.4764 x SD (m) – 0.1577

 

 

Max. (LT)

L = 7.1339 x SD (m) – 0.1615

 

 

 

 

 

ET-D75LE5

0.7:1

16:10

—

L = 0.6063 x SD (m) – 0.0835

 

0.7:1

16:9

—

L = 0.6220 x SD (m) – 0.0835

Fixed-Focus

 

0.8:1

4:3

—

L = 0.6850 x SD (m) – 0.0835

Lens

ET-D75LE50

0.7:1

16:10

—

L = 0.6063 x SD (m) – 0.0713

 

0.7:1

16:9

—

L = 0.6260 x SD (m) – 0.0713

 

 

0.8:1

4:3

—

L = 0.6890 x SD (m) – 0.0713

■■Formula to calculate projection distance per projection lens (forPT-DS20KU)

Projection lens

Throw ratio

Aspect ratio

 

Projection distance (L) formula

 

 

 

4:3

Min. (LW)

L = 1.2087 x SD (m) – 0.0760

 

ET-D75LE1

1.5 to 2.0:1

Max. (LT)

L = 1.6142 x SD (m) – 0.1004

 

 

 

16:9

Min. (LW)

L = 1.3150 x SD (m) – 0.0760

 

 

 

 

 

 

Max. (LT)

L = 1.7559 x SD (m) – 0.1004

 

 

 

 

 

 

 

4:3

Min. (LW)

L = 1.6220 x SD (m) – 0.0795

 

ET-D75LE2

2.0 to 3.0:1

Max. (LT)

L = 2.4291 x SD (m) – 0.1064

 

 

 

16:9

Min. (LW)

L = 1.7638 x SD (m) – 0.0795

 

 

 

 

 

 

Max. (LT)

L = 2.6457 x SD (m) – 0.1064

 

 

 

 

 

 

 

4:3

Min. (LW)

L = 2.4291 x SD (m) – 0.0958

 

ET-D75LE3

3.0 to 5.0:1

Max. (LT)

L = 4.0591 x SD (m) – 0.1216

 

 

 

16:9

Min. (LW)

L = 2.6457 x SD (m) – 0.0958

 

 

 

 

 

 

Max. (LT)

L = 4.4213 x SD (m) – 0.1216

 

 

 

 

 

 

 

4:3

Min. (LW)

L = 4.0591 x SD (m) – 0.1158

 

ET-D75LE4

5.0 to 8.0:1

Max. (LT)

L = 6.4528 x SD (m) – 0.1013

 

 

 

16:9

Min. (LW)

L = 4.4213 x SD (m) – 0.1158

 

 

 

 

 

 

Max. (LT)

L = 7.0315 x SD (m) – 0.1013

 

 

 

 

 

 

7.9 to 15.0:1

4:3

Min. (LW)

L = 6.4567 x SD (m) – 0.3862

 

ET-D75LE8

Max. (LT)

L = 12.0945 x SD (m) – 0.3598

 

 

 

 

8.0 to 15.0:1

16:9

Min. (LW)

L = 7.0315 x SD (m) – 0.3862

 

 

Zoom Lens

 

Max. (LT)

L = 13.1732 x SD (m) – 0.3598

 

 

 

 

 

4:3

Min. (LW)

L = 0.8150 x SD (m) – 0.0566

 

 

 

 

ET-D75LE6

1.0 to 1.2:1

Max. (LT)

L = 0.9764 x SD (m) – 0.0736

 

 

 

16:9

Min. (LW)

L = 0.8858 x SD (m) – 0.0566

 

 

 

 

 

 

Max. (LT)

L = 1.0630 x SD (m) – 0.0736

 

 

 

 

 

 

 

4:3

Min. (LW)

L = 1.1417 x SD (m) – 0.0857

 

ET-D75LE10

1.4 to 1.8:1

Max. (LT)

L = 1.4764 x SD (m) – 0.1085

 

 

 

16:9

Min. (LW)

L = 1.2441 x SD (m) – 0.0857

 

 

 

 

 

 

Max. (LT)

L = 1.6102 x SD (m) – 0.1085

 

 

 

 

 

 

 

4:3

Min. (LW)

L = 1.4606 x SD (m) – 0.0832

 

ET-D75LE20

1.8 to 2.6:1

Max. (LT)

L = 2.1260 x SD (m) – 0.1162

 

 

 

16:9

Min. (LW)

L = 1.5906 x SD (m) – 0.0832

 

 

 

 

 

 

Max. (LT)

L = 2.3150 x SD (m) – 0.1162

 

 

 

 

 

 

 

4:3

Min. (LW)

L = 2.1102 x SD (m) – 0.1131

 

ET-D75LE30

2.6 to 5.1:1

Max. (LT)

L = 4.0906 x SD (m) – 0.1765

 

 

 

16:9

Min. (LW)

L = 2.2953 x SD (m) – 0.1131

 

 

 

 

 

 

Max. (LT)

L = 4.4567 x SD (m) – 0.1765

 

 

 

 

 

 

 

4:3

Min. (LW)

L = 4.0394 x SD (m) – 0.1577

 

ET-D75LE40

5.0 to 8.0:1

Max. (LT)

L = 6.4370 x SD (m) – 0.1615

 

 

 

16:9

Min. (LW)

L = 4.3976 x SD (m) – 0.1577

 

 

 

 

 

 

Max. (LT)

L = 7.0118 x SD (m) – 0.1615

 

 

 

 

 

ET-D75LE5

0.8:1

4:3

—

L = 0.6220 x SD (m) – 0.0835

Fixed-Focus

16:9

—

L = 0.6772 x SD (m) – 0.0835

 

 

Lens

ET-D75LE50

0.8:1

4:3

—

L = 0.6220 x SD (m) – 0.0713

 

16:9

—

L = 0.6772 x SD (m) – 0.0713

 

 

 

40 - ENGLISH