Visual Systems Division
Technical Bulletin
MT1055 Installation Data
with Standard Zoom Lens (1.8 – 2.2:1)
Rev. 1.6
Page 2
Projection Distance and Screen Size for Ceiling Mount
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mount Installation
C
α
Screen Ctr
Scrn Bottom
Screen Top
Lens Ctr
Throw Distance
AC IN •@
•`
1.7"
Lens Offset from
Mounting Pipe
D
B
7.5"
5.8"
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"
10.2"
56.3" - 68.6"
1.8"
10.3° - 8.5°
60"
48"
36"
15.3"
86.1" - 104.3"
2.7"
10.1° - 8.4°
67"
53.6"
40.2"
17.1"
96.5" - 116.8"
3.0"
10.1° - 8.3°
72"
57.6"
43.2"
18.4"
103.9" - 125.7"
3.2"
10.0° - 8.3°
84"
67.2"
50.4"
21.5"
121.7" - 147.1"
3.7"
10.0° - 8.3°
90"
72"
54"
23.0"
130.7" - 157.8"
4.0"
10.0° - 8.3°
100"
80"
60"
25.5"
145.5" - 175.7"
4.5"
10.0° - 8.3°
120"
96"
72"
30.6"
175.3" - 211.4"
5.4"
9.9° - 8.3°
150"
120"
90"
38.3"
219.9" - 264.9"
6.7"
9.9° - 8.2°
180"
144"
108"
46.0"
264.5" - 318.4"
8.0"
9.9° - 8.2°
210"
168"
126"
53.6"
309.1" - 371.9"
9.4"
9.9° - 8.2°
240"
192"
144"
61.3"
353.7" - 425.4"
10.7"
9.8° - 8.2°
270"
216"
162"
69.0"
398.3" - 479.0"
12.0"
9.8° - 8.2°
300"
240"
180"
76.6"
443.0" - 532.5"
13.4"
9.8° - 8.2°
Screen Size
