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E-21
Setup & Connections
Adjusting the Projection Distance
Position the projector perpendicular to the screen with all feet flat and leveled to achieve an optimal image.
Move the projector forward or backward if the edges of the image are distorted.
• The projector lens should be centered in the middle of the screen. If the lens center is not perpendicular to the screen, the
image will be distorted, making viewing difficult.
• Position the screen so that it is not in direct sunlight or room light. Light falling directly onto the screen washes out colors,
making viewing difficult. Close the curtains and dim the lights when setting up the screen in a sunny or bright room.
• A polarizing screen cannot be used with this projector.
When using a wide
screen (16:9)
y
1
(Max.) =(0.062085x – 0.038555) / 0.3048
y
2
(Min.) = (0.051672x – 0.038495) / 0.3048
z
1
(Upper) = 0
h
: 0.309y
z
2
(Lower) = –0.6x
v
: 0.174y
x : Screen size (diag.) (inches)
y : Projection distance (feet)
z : Distance from the lens center to the lower
edge of the screen (feet)
When using a normal
screen (4:3)
y
1
(Max.) = (0.06764x – 0.038555) / 0.3048
y
2
(Min.) = (0.056295x – 0.038495) / 0.3048
z
1
(Upper) = 0.08171x
h
: 0.309y
z
2
(Lower) = –0.57197x
v
: 0.174y
x : Screen size (diag.) (inches)
y : Projection distance (feet)
z : Distance from the lens center to the lower
edge of the screen (feet)
3
4
: Screen area
9
: Picture area
16
: Area covered by the
projection panel of
the projector*
The formula for screen size and projection distance
• There is an error of ±3% in the formula above.
• The values of horizontal and vertical values may be limited when Keystone correction is applied
simultaneously in the horizontal and vertical directions. (See the diagram [fig. 1] above.)
Diag. (
x
)
200"
150"
100"
84"
72"
60"
40"
Width
160"
120"
80"
67"
58"
48"
32"
Height
120"
90"
60"
50"
43"
36"
24"
Maximum (
y
1
)
30'5" (9.3 m)
20'3" (6.2 m)
16'12" (5.2 m)
14'6" (4.4 m)
12'1" (3.7 m)
8' (2.4 m)
Screen size (4:3) Projection distance and Keystone correction
Distance from the lens center to
the bottom edge of the image (z)
Minimum (
y
2
)
33'9" (10.3 m)
25'4" (7.7 m)
16'10" (5.1 m)
14'1" (4.3 m)
12'1" (3.7 m)
10'1" (3.1 m)
6'8" (2.0 m)
–
9' 5" (2.86m) 5'3" (1.61m)
6' 3" (1.91m) 3'6" (1.07m)
5' 3" (1.60m) 2'11" (0.90m)
4' 6" (1.37m) 2'6" (0.77m)
3' 9" (1.14m) 2'1" (0.64m)
2' 6" (0.75m) 1'5" (0.42m)
10' 5" (3.18m) 5' 10" (1.79m)
7' 10" (2.38m) 4' 5" (1.34m)
5' 2" (1.59m) 2' 11" (0.89m)
4' 4" (1.33m) 2' 5" (0.75m)
3' 9" (1.14m) 2' 1" (0.64m)
3' 1" (.95m) 1' 9" (0.53m)
2' 1" (0.63m) 1' 2" (0.35m)
Upper (
z
1
)
0" (0 cm)
0" (0 cm)
0" (0 cm)
0" (0 cm)
0" (0 cm)
0" (0 cm)
0" (0 cm)
Lower (
z
2
)
–10' (–304.8 cm)
–7'6" (–228.6 cm)
–5' (–152.4 cm)
–4'2" (–128.0 cm)
–3'7" (–109.7 cm)
–3' (–91.4 cm)
–2' (–61.0 cm)
Maximum horizontal
placement range (h)
Maximum vertical
placement range (v)
Maximum horizontal
placement range (h)
Maximum vertical
placement range (v)
Diag. (
x
)
200"
150"
133"
106"
100"
92"
84"
72"
60"
40"
Width
174"
131"
116"
92"
87"
80"
73"
63"
52"
35"
Height
98"
74"
65"
52"
49"
45"
41"
35"
29"
20"
Screen size (16:9)
Projection distance and Keystone correction
Distance from the lens center to
the bottom edge of the image (z)
Upper (
z
1
)
1'4" (41.5 cm)
1' (31.1 cm)
11" (27.6 cm)
9" (22.0 cm)
8" (20.8 cm)
8" (19.1 cm)
7" (17.4 cm)
6" (14.9 cm)
5" (12.5
cm)
3" (8.3 cm)
Lower (
z
2
)
–9'6" (–290.6 cm)
–7'2" (–271.9 cm)
–6'4" (–193.2 cm)
–5'1" (–154.0 cm)
–4'9" (–145.3 cm)
–4'5" (–133.7 cm)
–4' (–122.0 cm)
–3'5" (–104.6 cm)
–2'10" (–87.2 cm)
–1'11" (–58.1 cm)
Maximum (
y
1
)
33'2" (10.1 m)
29'5" (9.0 m)
23'5" (7.1 m)
22'1" (6.7 m)
20'3" (6.2 m)
18'6"(5.6 m)
15'10"(4.8 m)
13'2"(4.0 m)
8'9"(2.7 m)
Minimum (
y
2
)
36'10" (11.2 m)
27'7" (8.4 m)
24'5" (7.4 m)
19'5" (5.9 m)
18'4" (5.6 m)
16'10" (5.1 m)
15'5" (4.7 m)
13'2" (4.0 m)
10'11" (3.3 m)
7'3" (2.2 m)
–
10' 3" (3.12m) 5' 9" (1.75m)
9' 1" (2.78m) 5' 2" (1.56m)
7' 2" (2.19m) 4' 1" (1.23m)
6' 10" (2.07m) 3' 10" (1.16m)
6' 3" (1.92m) 3' 6" (1.08m)
5' 8" (1.73m) 3' 2" (0.97m)
4' 10" (1.48m) 2' 9" (0.83m)
4' 1" (1.24m) 2' 3" (0.69m)
2' 9" (0.83m) 1' 6" (0.47m)
11' 4" (3.46m) 6' 5" (1.94m)
8' 6" (2.60m) 4'9" (1.46m)
7' 6" (2.29m) 4'3" (1.28m)
5' 12" (1.82m) 3'4" (1.02m)
5' 8" (1.73m) 3'2" (0.97m)
5' 2" (1.58m) 2'11" (0.89m)
4' 9" (1.45m) 2'8" (0.82m)
4' 1" (1.24m) 2'3" (0.69m)
3' 4" (1.02m) 1'11" (0.57m)
2' 3" (0.68m) 1'3" (0.38m)
Maximum horizontal
placement range (h)
Maximum vertical
placement range (v)
Maximum horizontal
placement range (h)
Maximum vertical
placement range (v)
0.1y
0.2y
0.1y
0.3y
0.15y
-
-0.15y
A.
B.
C.
C'.
B'.
-
--
h
v
z
x
y
V
h
h
A.
B.
C.
C'.
B'.
Center of the screen
A. Standard placement range
B.B'. Maximum horizontal placement range
C.C'. Maximum vertical placement range
Standard Setup (Front Projection)
Place the projector at the required
distance from the screen according to
the desired screen size. (See the tables
below.)
The figures in the tables are based upon
projecting an image so that it occupies
the entire screen.
The formula for screen size and projection distance
• There is an error of ±3% in the formula above.
• The values of horizontal and vertical values may be limited when Keystone correction is applied
simultaneously in the horizontal and vertical directions. (See the diagram [fig. 1] above.)
Placement range as determined
by Keystone correction
[Fig. 1]
XVZ90U(E)#p15_21.p65 20/8/02, 7:22 pm21