Canon DC-4381 - Manual (Page 14)

EN-14
Installation
Layout of the projector
Image size varies depending on the distance between the screen and the projector.
Front projection
L
W
A
B
H
C D
L : Between the screen and the front edge of the projector
A : Height of the projected image under the horizontal line
Optical offset:
B:A 27:13
C:D 41:59
inch
12
20
30
40
50
60
Screen diagonal size Distance (L)
cm
30.5
50.8
76.2
101.6
127.0
152.4
inch
15.4
26.0
39.0
53.0
66.1
78.9
cm
40
66
99
135
167
200
The above figures are approximate and may be slightly different from the actual
measurements.