3M MP8750 - Manual (Page 11)

6 3M

Multimedia Projector MP8750

3M 1999
3-5. Image Size (Projector-to-Screen Distance)
Adjust the size of the projected image using the zoom control buttons. The projected image size values, as they relate to the
distance-to-screen value, are shown for focal lengths of f=25mm and f=45mm. Also shown is the maximum image height
shift value that can vary depending on the focal length and the distance-to-screen. Figure 3.4.
Maximum (f=25mm) Minimum (f=45mm)
Distance to Screen
m (ft.)
Image
Width
m (in.)
Image
Height
m (in.) Max
Height
m (in.)
Image
Width
m (in.)
Image
Height
m (in.) Max
Height
m (in.)
2.00
(6.56)
1.42
(56)
1.06
(41.7)
.43
(16.9)
.80
(31.5)
.60
(23.6)
.24
(9.5)
2.50
(8.2)
1.76
(69.3)
1.32
(52)
.54
(21.3)
.99
(39)
.74
(29.1)
.30
(11.8)
3.00
(9.84)
2.11
(83.1)
1.57
(61.8)
.64
(25.2)
1.18
(46.5)
.89
(35)
.36
(14.2)
5.00
(16.4)
3.48
(137)
2.60
(102.4)
1.06
(41.7)
1.96
(77.2)
1.47
(57.9)
.60
(23.6)
7.00
(22.97)
4.85
(191)
3.62
(142.5)
1.47
(57.9)
2.73
(107.5)
2.05
(80.71)
.83
(32.7)
10.00
(32.81)
6.90
(271.7)
5.16
(203.2)
2.10
(82.7)
3.88
(152.8)
2.92
(115)
1.18
(46.5)
Figure 3.4. Image Size/Maximum Image Height
3-6. Image Height
Use the Picture menu/Height option to shift (upward) the projected image. The center of the projected image can be shifted
a maximum of 12 degrees without incurring any keystoning. Figure 3.5.
Figure 3.5. Maximum Image Shift
12 Degree Maximum Shift