Visual Systems
GT1150/2150 Installation Data
Desktop and Ceiling Mount
Rev 3.0
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
Throw Distance
Screen Ctr
4.65"
Note:
Lens shift is not available on GT10RL(rear lens). GT10RL should be used only for “zero degree/no-offset” applications.
Distance Chart
rear lens
GT10RL
Diagonal
Width(H)
Height (V)
1.0:1
inches
inches
inches
inches
40
32
24
30.4
39.6 - 49.2
56.4 - 74.3
60
48
36
46.8
60.6 - 75.0
86.2 - 113.1
111.8 - 164.2
67
53.6
40.2
52.6
67.9 - 84.0
96.7 - 126.7
125.4 - 183.9
72
57.6
43.2
56.7
73.1 - 90.5
104.1 - 136.3
135.1 - 198.0
84
67.2
50.4
66.6
85.7 - 105.9
122.0 - 159.6
158.4 - 231.8
231.9 - 351.3
90
72
54
71.5
92.0 - 113.7
131.0 - 171.2
170.0 - 248.7
249.0 - 376.9
100
80
60
79.7
102.5 - 126.6
145.9 - 190.6
189.5 - 276.9
277.4 - 419.5
120
96
72
96.1
123.4 - 152.3
175.7 - 229.4
228.3 - 333.2
334.2 - 504.7
150
120
90
120.8
154.9 - 191.0
220.4 - 287.5
286.6 - 417.7
419.5 - 632.6
180
144
108
145.4
186.3 - 229.7
265.2 - 345.7
344.9 - 502.2
504.7 - 760.5
210
168
126
170.1
217.7 - 268.3
309.9 - 403.9
403.1 - 586.7
590.0 - 888.4
240
192
144
194.7
249.2 - 307.0
354.6 - 462.0
461.4 - 671.2
675.3 - 1016.3
270
216
162
219.4
280.6 - 345.7
399.4 - 520.2
519.7 - 755.7
760.5 - 1144.1
300
240
180
244.0
312.1 - 384.3
444.1 - 578.3
578.0 - 840.2
845.8 - 1272.0
400
320
240
NA
772.2 - 1121.9
1130.0 - 1698.3
500
400
300
NA
1414.1 - 2124.6
Screen Size
(4:3)
Throw Distance
NA
zoom lenses
3.4 - 5.2:1
NA
GT13ZL
GT19ZL
NA
NA
GT24ZL
GT34ZL
2.4 - 3.4:1
inches
inches
NA
1.3 - 1.6:1
1.8 - 2.4:1
inches
inches
NA
NA
NA
NA
NA
Note:
For screen sizes not indicated on the projection tables, use the formulas on page 1.
