Download Lightning 30_40SX+m User Manual

Digital Projection LIGHTNING 30sx+m, 40sx+m User Manual
2. Installation
Choosing a lens using the lens charts
Notes
Full width images
This chart has a TRF of 1.0, for
use with the following images:
Use the chart below to choose which lens best suits your application.
example
•
For a screen width of 10m at a distance of 35m, the 2.77 - 4.51: 1 zoom lens
(107-146) would be best suited.
•
For the same screen size at a distance of 60m, the 4.51 - 7.53: 1 lens (107-147)
would be best suited.
2.35:1 (Scope),
1.85:1, 16:9,
1.66:1 (Vista) and 4:3
if you need to be more precise, then use the calculations on the page
immediately following the lens charts.
2.02 - 2.77 : 1
zoom lens
107-145
1.5 - 2.02 : 1
zoom lens
107-144
2.77 - 4.51 : 1
zoom lens
107-146
4.51 - 7.53 : 1
zoom lens
107-147
66 20
Screen width
49 15
33 10
1.2 : 1 fixed lens
(3 - 15m)
107-142
16
5
0.73 : 1 fixed lens
107-141
1.2 : 1 fixed lens
(1.2 - 2m)
107-143
10
33
20
66
page 2.6
30
98
40
50
131
164
Throw distance
105-681B January 2007
60
197
70
230
80 metres
262 feet