Digital Projection INSIGHT 4K Dual LED Series, Инструкция по установке и быстрому запуску

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page 47
Digital Projection INSIGHT 4K Laser Series
Reference Guide
CHOOSING A LENS
Rev C June 2016
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 Lens extension (±2%) Throw distance range
0.93 : 1 fixed lens 272 mm (10.7 in) 0.5 m - 40 m (1.6 ft - 130 ft)
1.13 - 1.72 : 1 zoom lens 240 mm (9.4 in) 2.5 m - 40+ m (8.2 ft - 130+ ft) at 1.13:1
0.5 m - 40+ m (1.6 ft - 130+ ft) at 1.72:1
1.65 - 2.60 : 1 zoom lens 210 mm (8.3 in) 3.5 m - 40+ m (11.5 ft - 130+ ft) at 1.65:1
1.0 m - 40+ m (3.3 ft - 130+ ft) at 2.60:1
2.53 - 4.98 : 1 zoom lens 210 mm (8.3 in) 1.5 m - 40+ m (4.9 ft - 130+ ft) at 2.53:1
4.5 m - 40+ m (14.8 ft - 130+ ft) at 4.98:1
To choose a lens, either calculate the throw ratio required, or use the lens charts provided at the end of this guide.
Notes
The information on this page applies
to version C of the projector. If your
projector is an earlier version or if
you are unsure which version you
have, see
Appendix G
at the end of
this document.
INSIGHT 4K zoom lenses are
capable of covering throw distances
greater than forty metres.
The minimum throw of the zoom
lenses changes depending on the
throw ratio used.
For information about individual lens
part numbers, see Appendix A at
the end of this document.
To choose a lens using lens charts,
go to Appendix B at the end of this
document.