page 57
Digital Projection INSIGHT 4K Laser Series
Reference Guide
APPENDIX B: LENS CHARTS
Rev C June 2016
Appendix B: Lens Charts
How to use the lens charts
The lens charts on the following pages provide
a quick guide to the type of lens needed for a
particular projector.
To use the lens charts, you need the following
information:
•
The distance between the projector and the
screen (throw distance)
•
The maximum width of your screen
In the chart, find the point where the throw distance
corresponds to the screen width, as shown in the
example below.
Example
For a projector with
•
throw distance 30 m, and
•
screen width 9 m,
the correct lens would be
number
4
in the chart.
20 m
(65.6 ft)
40 m
(131.2 ft)
100 m
(328.1 ft)
80 m
(262.5 ft)
60 m
(196.9 ft)
20 m (65.6 ft)
40 m (131.2 ft)
60 m (196.9 ft)
80 m (262.5 ft)
100 m (328.1 ft)
1
2
4
3
Screen width
Throw distance
1
Throw distance
2
Screen width
1
2
Notes
The information in this section
applies to version C of the projector.
If your projector is an earlier version
or if you are unsure which version
at the
end of this document.
