Benq SX914 Manuel Du Propriétaire
Positioning your projector
15
Obtaining a preferred projected image size
The distance from the projector lens to the screen, the zoom setting, and the video format
each factors in the projected image size.
Projection dimensions
Refer to
for the center of lens dimensions of this projector
before calculating the appropriate position.
The screen aspect ratio is 4:3 and the projected picture is 4:3
For example, if you are using an 120-inch screen, the recommended projection distance is
4848 mm and the vertical offset is 137-229 mm.
Screen size
Distance from screen [mm] Vertical offset [mm]
Diagonal
Height Width
Min
distance
(with
max
zoom)
Average
Max
distance
(with
min
zoom)
Max
offset
125%
Min
offset
115%
Mid
offset
120%
[inch] [mm] [mm]
[mm]
50
1270
762
1016
1544
2012
2479
95
57
76
60
1524
914
1219
1853
2414
2975
114
69
91
70
1778
1067
1422
2162
2816
3471
133
80
107
80
2032
1219
1626
2471
3219
3966
152
91
122
90
2286
1372
1829
2780
3621
4462
171
103
137
100
2540
1524
2032
3089
4023
4958
191
114
152
110
2794
1676
2235
3398
4426
5454
210
126
168
120
3048
1829
2438
3706
4828
5950
229
137
183
130
3302
1981
2642
4015
5230
6446
248
149
198
140
3556
2134
2845
4324
5633
6941
267
160
213
150
3810
2286
3048
4633
6035
7437
286
171
229
160
4064
2438
3251
4942
6437
7933
305
183
244
170
4318
2591
3454
5251
6840
8429
324
194
259
180
4572
2743
3658
5560
7242
8925
343
206
274
190
4826
2896
3861
5868
7644
9420
362
217
290
200
5080
3048
4064
6177
8047
9916
381
229
305
250
6350
3810
5080
7722
10058
12395
476
286
381
300
7620
4572
6096
9266
12070
14874
572
343
457
Maximum zoom
Minimum zoom
Projection distance
Center of lens
Screen
Vertical offset
H
W