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
"Dimensions" on page 58
for the center of lens dimensions of this projector before
calculating the appropriate position.
MX823ST
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
1487 mm and the vertical offset is 274 mm.
If your measured projection distance is 2.5 m (2500 mm), the closest match in the
"(b)
Distance from screen"
column is 2479 mm. Looking across this row shows that a 200''
(about 5.1 m) screen is required.
(a)
(b)
Center of lens
Screen
(c)
(a) Screen size
(b) Distance from screen
(mm)
(c) Vertical offset
(mm)
Diagonal
Height
(mm)
Width
(mm)
Inches
mm
80
2032
1219
1626
992
183
100
2540
1524
2032
1240
229
120
3048
1829
2438
1487
274
150
3810
2286
3048
1859
343
180
4572
2743
3658
2231
411
200
5080
3048
4064
2479
457
220
5588
3353
4470
2727
503
240
6096
3658
4877
2975
549
270
6858
4115
5486
3347
617
300
7620
4572
6096
3719
686
