14 Positioning your projector
Projection dimensions
MX863UST
• The screen aspect ratio is 4:3 and the projected picture is in a 4:3 aspect ratio
Screen size
Minimum
Ceiling height
Vertical
offset
Installation distance (D)
Diagonal (M)
Height (h)
Width (W)
H
a
a. Based on an image 762 mm from the floor, if the image is lower, the min ceiling height is reduced by the measurement.
V
X
b
=0 mm
(D=a)
b. Assume the thickness of projection screen(X) is 0 mm.
X
c
=30 mm
(D=a+30 mm)
c. Assume the thickness of projection screen(X) is 30 mm.
Inch
mm
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
73
1854
1113
1483
2401
238
88
118
78
1981
1189
1585
2490
252
118
148
83
2108
1265
1687
2580
265
147
177
88
2235
1341
1788
2670
279
177
207
93
2362
1417
1890
2760
292
207
237
98
2489
1494
1991
2849
306
236
266
100
2540
1524
2032
2885
311
248
278
103
2616
1570
2093
2939
319
266
296
108
2743
1646
2195
3029
333
296
326
110
2794
1676
2235
3065
338
308
338
All measurements are approximate and may vary from the actual sizes.
BenQ recommends that if you intend to permanently install the projector, you should physically test the projection
size and distance using the actual projector in situ before you permanently install it, so as to make allowance for this
projector's optical characteristics. This will help you determine the exact mounting position so that it best suits your
installation location.
M
W
h
Center: 0
-1.5 cm
+1.5 cm
+3.5 cm
-3.5 cm
Center: 0
Adjustment area
-4.8 cm
Image center
