A p p e n d i x

NOTE: The lens shift is not

adjustable on the optional short

throw lens. It is fixed at zero

degrees.

Projected Image Size for Optional Lenses

Table 4:

Diagonal Image Size and Width vs Distance to Screen-

Long Throw and Short Throw Lenses

Diagonal

 

Distance to screen

 

 

 

Image Size

Image Width

Long Throw

Short Throw

(inches)

(inches)

(feet)

(feet)

 

 

 

 

300

240

100

N/A

240

192

80

N/A

180

144

60

N/A

144

115

48

11.5

120

96

40

9.6

96

77

32

7.7

72

58

24

5.8

60

48

20

4.8

48

38

N/A

3.8

The formulas for distance to the screen are:

Long throw lens distance (ft) = diagonal image size (ft) ÷ .25 Short throw lens distance (ft) = diagonal image size (ft) ÷ 1.042

54

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Image 62
Apple 9000 manual Projected Image Size for Optional Lenses, Diagonal Distance to screen, Image Width Long Throw Short Throw