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Digital Projection M-Vision 930 Series
Choosing A Lens
A number of lenses are available. Which lens you choose depends on the screen size, image aspect ratio, throw distance and light output.
The following table shows all available lenses in order of their throw ratios:
Throw ratios
Throw distance range
0.84 - 1.03 : 1 zoom lens
1.5 - 10 m (4.9 - 32.8 ft)
1.56 - 1.86 : 1 zoom lens
2 - 12.4 m (6.6 - 40.7 ft)
1.85 - 2.40 : 1 zoom lens
2.5 - 15.9 m (8.2 - 52.2 ft)
2.40 - 4.00 : 1 zoom lens
4 - 26.6 m (13.1 - 87.3 ft)
To choose a lens, either calculate the throw ratio required, or use the lens charts provided within this section.
Reference Guide
CHOOSING A LENS
Lens extension
98.5 mm
15.4 mm
15.4 mm
73.5 mm
Notes
For information about individual lens
part numbers and lens extension
sizes, see
Appendix A
at the end of
this document.
Lens extension is measured when
the lens is focused at infinity, and
fully extended. At other focus
settings, the extension could be up
to 10 mm less.
Rev C February 2015
page 74
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