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Picture size and projection distance chart
Screen
H
NORMAL Mode (4:3)
Picture (Screen) size
Diag. [ χ ]
Width
250'' (635 cm) 508 cm (200'') 381 cm (150'') 11.3 m (37' 2") 14.4 m (47' 1")
200'' (508 cm) 406 cm (160'') 305 cm (120'') 9.1 m (29' 9") 11.5 m (37' 8")
150'' (381 cm) 305 cm (120'') 229 cm (90'')
100'' (254 cm) 203 cm (80'')
84'' (213 cm) 171 cm (67'')
80'' (203 cm) 163 cm (64'')
72'' (183 cm) 146 cm (58'')
60'' (152 cm) 122 cm (48'')
40'' (102 cm) 81 cm
(32'')
χ : Picture size (diag.) (in/cm)
L : Projection distance (m/ft)
L1 : Minimum projection distance (m/ft)
L2 : Maximum projection distance (m/ft)
H : Distance from the lens center to the bottom of the image (cm/in)
STRETCH Mode (16:9)
Picture (Screen) size
Diag. [ χ ]
Width
225'' (572 cm) 498 cm (196'') 280 cm (110'') 11.1 m (36' 5") 14.1 m (46' 2")
200'' (508 cm) 443 cm (174'') 249 cm (98'')
150'' (381 cm) 332 cm (131'') 187 cm (74'')
133'' (338 cm) 294 cm (116'') 166 cm (65'')
106'' (269 cm) 235 cm (92'')
100'' (254 cm) 221 cm (87'')
92'' (234 cm) 204 cm (80'')
84'' (213 cm) 186 cm (73'')
80'' (203 cm) 177 cm (70'')
72'' (183 cm) 159 cm (63'')
60'' (152 cm) 133 cm (52'')
40'' (102 cm) 89 cm
(35'')
χ : Picture size (diag.) (in/cm)
L : Projection distance (m/ft)
L1 : Minimum projection distance (m/ft)
L2 : Maximum projection distance (m/ft)
H : Distance from the lens center to the bottom of the image (cm/in)
S : Adjustable range of image position (cm/in)
Note
• Allow a margin of error in the values in the diagrams above.
• When the distance from the lens center to the bottom of the image [H] is a negative number,
this indicates that the bottom of the image is below the lens center.
-3
Base line:
Horizontal line passing through the lens center
L : Projection distance
Projection distance [L]
Height
Minimum [L1] Maximum [L2]
6.8 m (22' 3")
152 cm (60'')
4.5 m (14' 10") 5.7 m (18' 10")
128 cm (50'')
3.8 m (12' 6")
122 cm (48'')
3.6 m (11' 11") 4.6 m (15' 1")
110 cm (43'')
3.3 m (10' 8")
91 cm
(36'')
2.7 m (8' 11")
61 cm
(24'')
1.8 m (5' 11")
Projection distance [L]
Height
Minimum [L1] Maximum [L2]
9.9 m (32' 5") 12.5 m (41' 1")
7.4 m (24' 3")
6.6 m (21' 6")
132 cm (52'')
5.2 m (17' 2")
125 cm (49'')
4.9 m (16' 2")
115 cm (45'')
4.5 m (14' 11") 5.8 m (18' 11")
105 cm (41'')
4.1 m (13' 7")
100 cm (39'')
3.9 m (12' 11") 5.0 m (16' 5")
90 cm
(35'')
3.6 m (11' 8")
75 cm
(29'')
3.0 m (9' 9")
50 cm
(20'')
2.0 m (6' 6")
Lens center
Distance from the lens center
to the bottom of the image [H]
–38 cm
–30 cm
8.6 m (28' 3")
–23 cm
–15 cm
4.8 m (15' 10")
–13 cm
–12 cm
4.1 m (13' 7")
–11 cm
3.4 m (11' 4")
–9 cm
2.3 m (7' 6")
–6 cm
The formula for picture size and projection distance
[m/cm]
L1 (m) = 0.04529 χ
L2 (m) = 0.05745 χ
H (cm) = –0.1524 χ
Distance from the lens center
to the bottom of the image [H]
9 cm
8 cm
9.4 m (30' 10")
6 cm
8.3 m (27' 4")
6 cm
6.6 m (21' 9")
4 cm
6.3 m (20' 6")
4 cm
4 cm
5.3 m (17' 3")
3 cm
3 cm
4.5 m (14' 9")
3 cm
3.8 m (12' 4")
2 cm
2.5 m (8' 3")
2 cm
The formula for picture size and projection distance
[m/cm]
L1 (m) = 0.04934 χ
L2 (m) = 0.06259 χ
H (cm) = 0.04151 χ
S (cm) = ±0.20754 χ
(–15")
(–12")
(–9")
(–6")
3
(–5
/
")
64
51
(–4
/
")
64
5
(–4
/
")
16
(–3
19
/
")
32
(–2
13
/
")
32
[ft/in]
L1 (ft) = 0.04529 χ / 0.3048
L2 (ft) = 0.05745 χ / 0.3048
H (in) = –0.1524 χ / 2.54
Adjustable range of
image position [S]
±47 cm
(3
43
/
")
(±18
64
±42 cm
17
(3
/
")
(±16
64
±31 cm
29
(2
/
")
(±12
64
±28 cm
11
(2
/
")
(±10
64
±22 cm
47
(1
/
")
(±8
64
±21 cm
41
(1
/
")
(±8
64
±19 cm
(1
1
/
")
(±7
2
±17 cm
(1
3
/
")
(±6
8
±17 cm
(1
5
/
")
(±6
16
±15 cm
(1
11
/
")
(±5
64
±12 cm
(
63
/
")
(±4
64
±8 cm
(
21
/
")
(±3
32
[ft/in]
L1 (ft) = 0.04934 χ / 0.3048
L2 (ft) = 0.06259 χ / 0.3048
H (in) = 0.04151 χ / 2.54
S (in)= ±0.20754 χ / 2.54
25
/
")
64
11
/
")
32
1
/
")
4
7
/
")
8
21
/
")
32
11
/
")
64
33
/
")
64
55
/
")
64
17
/
")
32
57
/
")
64
29
/
")
32
17
/
")
64
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