19
Every type of optional projection lenses has a different projection distance to achieve the same screen size. Select
and purchase a projection lens most suitable to the size of your location referring to the following tables and the
projection distances by the type of projection lenses on the pages 19-22.
L : Projection distance
SH : Effective screen height
L
SH
Screen
Projection distances by the type of projection lenses (for PT-D7500U)
• For the screen aspect ratio of 4:3
Units: m (feet/inches)
• The projection distances listed here involve an error of ±5%.
• Keystone distortions are corrected in the way the screen size becomes smaller than the original one.
Projection distances by the type of projection lenses (optional)
Note
Screen
size
(inch)
Screen dimensions
70
80
90
100
120
150
200
250
300
350
400
500
600
1.066
(3'6")
1.219
(4'0")
1.371
(4'6")
1.524
(5'0")
1.828
(6'0")
2.286
(7'6")
3.048
(10'0")
3.810
(12'6")
4.572
(15'0")
5.334
(17'6")
6.096
(20'0")
7.620
(25'0")
9.144
(30'0")
1.422
(4'8")
1.625
(5'4")
1.828
(6'0")
2.032
(6'8")
2.438
(8'0")
3.048
(10'0")
4.064
(13'4")
5.080
(16'8")
6.096
(20'0")
7.112
(23'4")
8.129
(26'8")
10.160
(33'4")
12.192
(40'0")
Effective
width(SW)
2.81
(9'3")
3.22
(10'7")
3.63
(11'11")
4.04
(13'3")
4.87
(16'0")
6.10
(20'0")
8.16
(26'10")
10.22
(33'7")
12.28
(40'5")
14.34
(47'2")
16.40
(53'11")
20.52
(67'6")
24.64
(81'0")
3.74
(12'3")
4.29
(14'1")
4.84
(15'11")
5.39
(17'9")
6.49
(21'4")
8.13
(26'9")
10.88
(35'9")
13.62
(44'10")
16.37
(53'16")
19.11
(62'10")
21.86
(71'11")
27.35
(90'1")
32.84
(108'1")
3.78
(12'5")
4.34
(14'3")
4.89
(16'1")
5.44
(17'11")
6.54
(21'6")
8.20
(27'0")
10.96
(36'0")
13.72
(45'1")
16.48
(54'2")
19.24
(63'3")
22.00
(72'4")
27.52
(90'6")
33.04
(108'8")
5.68
(18'8")
6.50
(21'4")
7.33
(24'11")
8.15
(26'10")
9.81
(32'3")
12.28
(40'5")
16.41
(54'0")
20.54
(67'7")
24.67
(81'2")
28.80
(94'9")
32.93
(108'4")
41.19
(135'6")
49.45
(162'8")
5.73
(18'10")
6.57
(21'7")
7.40
(24'4")
8.23
(24'1")
9.90
(32'7")
12.40
(40'9")
16.56
(54'6")
20.73
(68'2")
24.89
(81'11")
29.06
(95'7")
33.22
(109'3")
41.55
(136'8")
49.88
(164'1")
9.47
(31'2")
10.84
(35'8")
12.21
(40'2")
13.58
(44'8")
16.32
(53'8")
20.43
(67'2")
27.28
(89'9")
34.13
(112'3")
40.98
(134'10")
47.83
(157'4")
54.68
(179'11")
68.38
(224'11")
82.08
(270'0")
9.48
(31'2")
10.85
(35'8")
12.22
(40'2")
13.59
(44'8")
16.33
(53'9")
20.44
(67'3")
27.29
(89'9")
34.14
(112'3")
40.99
(134'10")
47.84
(157'4")
54.69
(179'11")
68.39
(224'11")
82.09
(270'0")
15.45
(50'10")
17.67
(58'1")
19.90
(65'5")
22.12
(72'9")
26.56
(87'4")
33.23
(109'3")
44.34
(145'10")
55.45
(182'5")
66.56
(218'11")
77.67
(255'6")
88.78
(292'0")
111.00
(365'1")
133.22
(437'6")
1.40
(4'7")
1.61
(5'3")
1.82
(6'0")
2.04
(6'8")
2.46
(8'1")
3.10
(3'6")
4.16
(10'2")
5.22
(17'2")
6.28
(20'8")
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Minimum Maximum
ET-D75LE1/SC (1.87-2.5 :1)
Minimum Maximum
ET-D75LE2/SC(2.5-3.75 :1)
Minimum Maximum
ET-D75LE3/SC(3.75-6.25 :1)
Minimum Maximum
ET-D75LE4/SC (6.25-10.0 :1) ET-D75LE5
(1.0 : 1)
Projection distance (L)
Zoom lens
Fixed-focus lens
Effective
height (SH)
