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Appendix
Relationship between Projection Distances and Projection Screen Sizes
The projection screen sizes and projection distances are only for a guide. Use them as reference when setting the projector.
Projection screen size
(Diagonal length)
unit: inch (cm)
40 (approx.
101.6)
50 (approx.
127.0)
60 (approx.
152.4)
70 (approx.
177.8)
80 (approx.
203.2)
90 (approx.
228.6)
100 (approx.
254.0)
110 (approx.
279.4)
120 (approx.
304.8)
130 (approx.
330.2)
140 (approx.
355.6)
150 (approx.
381.0)
160 (approx.
406.4)
170 (approx.
431.8)
180 (approx.
457.2)
190 (approx.
482.6)
200 (approx.
508.0)
210 (approx.
533.4)
220 (approx.
558.8)
230 (approx.
584.2)
240 (approx.
609.6)
250 (approx.
635.0)
260 (approx.
660.4)
270 (approx.
685.8)
280 (approx.
711.2)
290 (approx.
736.6)
300 (approx.
762.0)
310 (approx.
787.4)
320 (approx.
812.8)
330 (approx.
838.2)
340 (approx.
863.6)
350 (approx.
889.0)
360 (approx.
914.4)
370 (approx.
939.8)
380 (approx.
965.2)
390 (approx.
990.6)
400 (approx. 1016.0)
410 (approx. 1041.4)
420 (approx. 1066.8)
430 (approx. 1092.2)
440 (approx. 1117.6)
450 (approx. 1143.0)
460 (approx. 1168.4)
470 (approx. 1193.8)
480 (approx. 1219.2)
490 (approx. 1244.6)
500 (approx. 1270.0)
510 (approx. 1295.4)
Approximate projection distance
For 4:3 aspect-ratio screens
Wide end
Tele end
unit: ft (m)
unit: ft (m)
--------- ---------
14.83 ( 4.52)
--------- ---------
18.44 ( 5.62)
--------- ---------
22.05 ( 6.72)
--------- ---------
25.66 ( 7.82)
15.55 ( 4.74)
29.30 ( 8.93)
17.45 ( 5.32)
32.91 (10.03)
19.36 ( 5.90)
36.52 (11.13)
21.26 ( 6.48)
40.13 (12.23)
23.16 ( 7.06)
43.77 (13.34)
25.07 ( 7.64)
47.38 (14.44)
26.97 ( 8.22)
50.99 (15.54)
28.87 ( 8.80)
54.59 (16.64)
30.77 ( 9.38)
58.20 (17.74)
32.68 ( 9.96)
61.85 (18.85)
34.58 (10.54)
65.45 (19.95)
36.48 (11.12)
69.06 (21.05)
38.39 (11.70)
72.67 (22.15)
40.29 (12.28)
76.31 (23.26)
42.16 (12.85)
76.92 (24.36)
44.06 (13.43)
83.53 (25.46)
45.97 (14.01)
87.14 (26.56)
47.87 (14.59)
90.78 (27.67)
49.77 (15.17)
94.39 (28.77)
51.67 (15.75)
98.00 (29.87)
53.58 (16.33)
--------- ---------
55.48 (16.91)
--------- ---------
57.38 (17.49)
--------- ---------
59.29 (18.07)
--------- ---------
61.19 (18.65)
--------- ---------
63.09 (19.23)
--------- ---------
64.99 (19.81)
--------- ---------
66.90 (20.39)
--------- ---------
68.80 (20.97)
--------- ---------
70.70 (21.55)
--------- ---------
72.61 (22.13)
--------- ---------
74.51 (22.71)
--------- ---------
76.41 (23.29)
--------- ---------
78.32 (23.87)
--------- ---------
80.19 (24.44)
--------- ---------
82.09 (25.02)
--------- ---------
83.99 (25.60)
--------- ---------
85.89 (26.18)
--------- ---------
87.80 (26.76)
--------- ---------
89.70 (27.34)
--------- ---------
91.60 (27.92)
--------- ---------
93.51 (28.50)
--------- ---------
95.41 (29.08)
--------- ---------
97.31 (29.66)
--------- ---------
For16 :9 aspect-ratio screens
Wide end
Tele end
unit: ft (m)
unit: ft (m)
--------- ---------
16.11 ( 4.91)
--------- ---------
20.05 ( 6.11)
--------- ---------
23.98 ( 7.31)
14.83 ( 4.52)
27.92 ( 8.51)
16.93 ( 5.16)
31.86 ( 9.71)
19.00 ( 5.79)
35.83 (10.92)
21.06 ( 6.42)
39.76 (12.12)
23.13 ( 7.05)
43.70 (13.32)
25.20 ( 7.68)
47.64 (14.52)
27.26 ( 8.31)
51.58 (15.72)
29.33 ( 8.94)
55.51 (16.92)
31.43 ( 9.58)
59.45 (18.12)
33.50 (10.21)
63.39 (19.32)
35.57 (10.84)
67.32 (20.52)
37.63 (11.47)
71.26 (21.72)
39.70 (12.10)
75.23 (22.93)
41.77 (12.73)
79.17 (24.13)
43.83 (13.36)
83.11 (25.33)
45.93 (14.00)
87.04 (26.53)
48.00 (14.63)
90.98 (27.73)
50.07 (15.26)
94.92 (28.93)
52.13 (15.89)
--------- ---------
54.20 (16.52)
--------- ---------
56.27 (17.15)
--------- ---------
58.33 (17.78)
--------- ---------
60.40 (18.41)
--------- ---------
62.50 (19.05)
--------- ---------
64.57 (19.68)
--------- ---------
66.64 (20.31)
--------- ---------
68.70 (20.94)
--------- ---------
70.77 (21.57)
--------- ---------
72.84 (22.20)
--------- ---------
74.90 (22.83)
--------- ---------
77.00 (23.47)
--------- ---------
79.07 (24.10)
--------- ---------
81.14 (24.73)
--------- ---------
83.20 (25.36)
--------- ---------
85.27 (25.99)
--------- ---------
87.34 (26.62)
--------- ---------
89.40 (27.25)
--------- ---------
91.50 (27.89)
--------- ---------
93.57 (28.52)
--------- ---------
95.64 (29.15)
--------- ---------
97.71 (29.78)
--------- ---------
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71
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