Table 3: Projection sizes: Short Zoom lens (1.1 -1.51 throw ratio range)

 

Minimum Image

Maximum Image

 

 

 

 

 

 

Diagonal

Image

Diagonal

Image

Distance

Image

Width

Image

Width

(feet/m)

(feet/m)

(feet/m)

(feet/m)

(feet/m)

 

 

 

 

 

 

 

 

 

 

Min Distance

1.67/0.51

1.33/0.41

2.27/0.69

1.82/0.55

2/0.6

 

 

 

 

 

 

 

 

 

5/1.5

4.17/1.27

3.33/1.02

5.68/1.73

4.55/1.39

 

 

 

 

 

10/3.0

8.33/2.54

6.67/2.03

11.36/3.46

9.09/2.77

 

 

 

 

 

20/6.1

16.67/5.08

13.33/4.06

22.73/6.93

18.18/5.54

 

 

 

 

 

25/7.6

20.83/6.35

16.67/5.08

28.41/8.66

22.73/6.93

 

 

 

 

 

Max Distance

25.42/7.75

20.33/6.2

34.66/10.56

27.73/8.45

30.5/9.3

 

 

 

 

 

 

 

 

 

The image offset range for the short throw lens is 10:1 (100%) to 1:1 (50%).

Table 4: Projection sizes: Long Throw lens (2.2 - 4.2:1 throw ratio range)

 

Minimum Image

Maximum Image

 

 

 

 

 

 

Diagonal

Image

Diagonal

Image

Distance

Image

Width

Image

Width

(feet/m)

(feet/m)

(feet/m)

(feet/m)

(feet/m)

 

 

 

 

 

 

 

 

 

 

Min Distance

1.28/0.39

1.02/.31

2.39/0.73

1.91/0.58

4.2/1.3

 

 

 

 

 

 

 

 

 

10/3.0

3.05/0.93

2.44/0.74

5.68/1.73

4.55/1.39

 

 

 

 

 

20/6.1

6.1/1.86

4.88/1.49

11.36/3.46

9.09/2.77

 

 

 

 

 

30/9.1

9.15/2.79

7.32/2.23

17.05/5.2

13.64/4.16

 

 

 

 

 

40/12.2

12.2/3.72

9.76/2.97

22.73/6.93

18.18/5.54

 

 

 

 

 

60/18.3

18.29/5.58

14.63/4.46

34.09/10.39

27.27/8.31

 

 

 

 

 

Max Distance

25.37/7.73

20.29/6.19

47.27/14.41

37.82/11.53

60/18.3

 

 

 

 

 

 

 

 

 

The image offset range for the long throw lens is 10:1 (100%) to 1:1 (50%).

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Image 44
InFocus LP 850, LP 840 manual Distance Image Width