Choosing A Lens; Choosing A Lens - INSIGHT 4K Dual LED Series Installation And Quick Start Manual

Digital Projection INSIGHT 4K Dual LED & Quad 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 Lens extension (±2%)
0.93 : 1 fixed lens 272 mm (10.7 in)
1.13 - 1.72 : 1 zoom lens 240 mm (9.4 in)
1.65 - 2.60 : 1 zoom lens 210 mm (8.3 in)
2.53 - 4.98 : 1 zoom lens 210 mm (8.3 in)
To choose a lens, either calculate the throw ratio required, or use the lens charts provided at the end of this guide.
Reference Guide

CHOOSING A LENS

Throw distance range
0.5 m - 40 m (1.6 ft - 130 ft)
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
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
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
Notes
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.
Throw distance is measured from
the front of the lens. Lens extension
values give the distance from the
front of the lens to the front cover
of the projector. Lens extension is
measured when the lens is focused
at infinity, and fully extended.
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: Lens Charts at
the end of this guide.
Rev B June 2016
page 45