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Figure
2-1.
Image
height
Figure
2-2.
Image
width
Table
2-1.
Projection
distance
1
(m/ft)
Image
Width
2
(m/in.)
Diagonal
image
size
3
(m/in.)
Image
height
4
(m/in.)
1.5
m/4.92
ft
1.1
m/42.5
in.
0.9
m/33.8
in.
0.7
m/25.6
in.
2.0
m/6.56
ft
1.4
m/56.7
in.
1.2
m/45.3
in.
0.9
m/34.0
in.
2.4
m/7.87
ft
1.7
m/67.7
in.
1.4
m/53.9
in.
1.0
m/40.5
in.
2.8
m/9.18
ft
2.0
m/79.1
in.
1.6
m/62.9
in.
1.2
m/47.4
in.
3.2
m/10.5
ft
2.3
m/90.5
in.
1.8
m/72.4
in.
1.4
m/54.3
in.
3.6
m/11.81
ft
2.6
m/101.9
in.
2.1
m/81.5
in.
1.5
m/61.0
in.
4.0
m/13.12
ft
2.9
m/113.4
in.
2.3
m/90.6
in.
1.7
m/68.1
in.
4.4
m/14.43
ft
3.2
m/124.8
in.
2.5
m/99.6
in.
1.9
m/74.8
in.
4.8
m/15.74
ft
3.5
m/135.8
in.
2.8
m/108.7
in.
2.1
m/81.6
in.
5.2
m/17.06
ft
3.7
m/147.2
in.
3.0
m/117.7
in.
2.2
m/88.2
in.
5.6
m/18.37
ft
4.0
m/158.7
in.
3.2
m/126.8
in.
2.4
m/95.3
in.
5.0
m/19.68
ft
4.3
m/170.1
in.
3.5
m/135.8
in.
2.6
m/101.9
in.
10.0
m/32.8
ft
7.2
m/283.5
in.
5.8
m/226.8
in.
4.3
m/170.1
in.
Chapter
2.
Setting
up
the
projector
2-3