Visual Systems Division
Technical Bulletin
MT850 Installation Data
with Standard Zoom Lens (1.8 – 2.2:1)
Rev. 1.6
Page 3
Projection Distance and Screen Size for Desktop
The following diagram shows the relationship between projector position and the screen.
Distances are in inches. For millimeters multiply by 25.4.
Desktop Setup
C
D
α
Throw Distance
Screen Top
Scrn Bottom
Screen Ctr
B
2.89"
Projector Foot
Lens Ctr
Distance Chart
Note:
For screen sizes of 30 to 300 inches not indicated on the projection tables, use the formulas on page 1.
B
C
D
α
Diagonal
Width
Height
wide - tele
wide - tele
40"
32"
24"
10.3"
57.0" - 68.8"
1.7"
10.2° - 8.5°
60"
48"
36"
15.4"
86.5" - 104.3"
2.6"
10.1° - 8.4°
67"
53.6"
40.2"
17.2"
96.9" - 116.7"
2.9"
10.1° - 8.4°
72"
57.6"
43.2"
18.5"
104.3" - 125.5"
3.1"
10.1° - 8.4°
84"
67.2"
50.4"
21.6"
122.0" - 146.8"
3.6"
10.1° - 8.4°
90"
72"
54"
23.2"
130.9" - 157.5"
3.8"
10.0° - 8.4°
100"
80"
60"
25.7"
145.6" - 175.2"
4.3"
10.0° - 8.4°
120"
96"
72"
30.9"
175.2" - 210.7"
5.1"
10.0° - 8.3°
150"
120"
90"
38.6"
219.6" - 263.9"
6.4"
10.0° - 8.3°
180"
144"
108"
46.3"
263.9" - 317.1"
7.7"
10.0° - 8.3°
210"
168"
126"
54.1"
308.3" - 370.3"
8.9"
9.9° - 8.3°
240"
192"
144"
61.8"
352.6" - 423.6"
10.2"
9.9° - 8.3°
270"
216"
162"
69.5"
396.9" - 476.8"
11.5"
9.9° - 8.3°
300"
240"
180"
77.2"
441.3" - 530.0"
12.8"
9.9° - 8.3°
Screen Size
