Choosing A Lens
A number of lenses are available. Which lens you choose will depend on the screen size, image aspect ratio, projection distance and light
output. In addition, each lens is available in two versions: High Brightness and High Contrast.
The lenses available are listed below:
Lens (WUXGA and 1080p) Lens (SX+)
0.67 : 1 xed lens 0.73 : 1 xed lens
1.12 : 1 xed lens (3 - 15m) 1.2 : 1 xed lens (3 - 15m)
1.12 : 1 xed lens (1.2 - 2m) 1.2 : 1 xed lens (1.2 - 2m)
1.16 - 1.49 : 1 zoom lens 1.26 - 1.61 : 1 zoom lens
1.39 - 1.87 : 1 zoom lens 1.5 - 2.02 : 1 zoom lens
1.87 - 2.56 : 1 zoom lens 2.02 - 2.77 : 1 zoom lens
2.56 - 4.17 : 1 zoom lens 2.77 - 4.51 : 1 zoom lens
4.17 - 6.95 : 1 zoom lens 4.51 - 7.53 : 1 zoom lens
6.93 - 10.34 : 1 zoom lens 7.5 - 11.2 : 1 zoom lens
If the image does not ll the full width of the DMD™, this effectively increases the throw ratio of the lens. This can be corrected by applying a
throw ratio factor (TRF).
To choose a lens for your projector, you can either apply a lens calculation, or use the lens charts provided here for quick reference.
Notes
The High Brightness lenses are
recommended for the standard
models, for maximum light output.
The High Contrast lenses are
recommended for the Ultra Contrast
models, for maximum contrast.
The same lens has different
effective throw ratios for WUXGA
and 1080p, and for SX+, due to the
different width of the DMD.
Each time a new lens is tted
to the projector, the calibration
procedure must be carried out.
See Lens menu in the Operating
Guide.
For more information about throw
ratio factor (TRF), see Choosing
a lens by calculation later in this
section.
For information about individual lens
part numbers, see Appendix A at
the end of this document.
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