Benq PB8250 Manuel D’Utilisation
Setting Up Your Projector
17
The recommended focus range is from 1.5 ~ 8 meters (6 ~ 32 feet).
There is 3% ~ 5% tolerance among these numbers due to optical component variations.
* 1 m = 3.28 feet, 1 foot = 0.305 m, 1 m = 100 cm, 1 foot = 12 inches
Screen size chart (4:3 aspect ratio)
Distance
from
screen
from
screen
Diagonal measurement
Distance
from
screen
from
screen
Diagonal measurement
Minimum
zoom
zoom
Maximum
zoom
zoom
Minimum
zoom
zoom
Maximum
zoom
zoom
feet
inch
feet
inch
feet inch
meter
cm
meter
cm
meter
cm
4
48
2.49
29.9
3.05
36.6
1
100
0.62
62.2
0.76
76.2
6
72
3.73
44.8
4.57
54.9
1.5
150
0.93
93.3
1.14
114.3
8
96
4.98
59.7
6.10
73.2
2
200
1.24
124.5
1.52
152.4
10
120
6.22
74.7
7.62
91.4
2.5
250
1.56
155.6
1.91
190.5
12
144
7.47
89.6
9.14
109.7
3
300
1.87
186.7
2.29
228.6
14
168
8.71
104.5 10.67 128.0
3.5
350
2.18
217.8
2.67
266.7
16
192
9.96
119.5 12.19 146.3
4
400
2.49
248.9
3.05
304.8
18
216
11.20 134.4 13.72 164.6
4.5
450
2.80
280.0
3.43
342.9
20
240
12.45 149.4 15.24 182.9
5
500
3.11
311.2
3.81
381.0
22
264
13.69 164.3 16.76 201.2
5.5
550
3.42
342.3
4.19
419.1
24
288
14.94 179.2 18.29 219.5
6
600
3.73
373.4
4.57
457.2
26
312
16.18 194.2 19.81 237.7
6.5
650
4.04
404.5
4.95
495.3
28
336
17.42 209.1 21.34 256.0
7
700
4.36
435.6
5.33
533.4
30
360
18.67 224.0 22.86 274.3
7.5
750
4.67
466.7
5.72
571.5
32
384
19.91 239.0 24.38 292.6
8
800
4.98
497.8
6.10
609.6
34
408
21.16 253.9 25.91 310.9
8.5
850
5.40
539.8
6.48
647.7
Screen size chart (16:9 aspect ratio)
Distance
from
screen
from
screen
Diagonal measure-
ment
ment
Distance
from screen
from screen
Diagonal measurement
Minimum
zoom
zoom
Maximum
zoom
zoom
Minimum
zoom
zoom
Maximum
zoom
zoom
feet
inch
feet
inch
feet inch
meter
cm
meter
cm
meter
cm
4
48
2.29
27.5
2.80
33.6
1
100
0.57
57.4
0.70
70.0
6
72
3.44
41.3
4.20
50.4
1.5
150
0.86
86.0
1.05
105.0
8
96
4.59
55.1
5.60
67.2
2
200
1.15
114.7
1.40
140.0
10
120
5.74
68.8
7.00
84.0
2.5
250
1.43
143.4
1.75
179.4
12
144
6.88
82.6
8.40
100.8
3
300
1.72
172.1
2.10
209.9
14
168
8.03
96.4
9.80
117.6
3.5
350
2.01
200.8
2.45
244.9
16
192
9.18
110.1 11.20 134.4
4
400
2.29
229.4
2.80
279.9
18
216
10.32 123.9 12.60 151.2
4.5
450
2.58
258.1
3.15
314.9
20
240
11.47 137.7 14.00 167.9
5
500
2.87
286.8
3.50
349.9
22
264
12.62 151.4 15.39 184.7
5.5
550
3.15
315.5
3.85
384.9
24
288
13.77 165.2 16.79 201.5
6
600
3.44
344.1
4.20
419.9
26
312
14.91 179.0 18.19 218.3
6.5
650
3.37
372.8
4.55
454.9
28
336
16.06 192.7 19.59 235.1
7
700
4.02
401.5
4.90
489.8
30
360
17.21 206.5 20.99 251.9
7.5
750
4.30
430.2
5.25
524.8
32
384
18.35 220.3 22.39 268.7
8
800
4.59
458.9
5.60
559.8