Page 2.6
Rev C April 2011
2. Installation
Digital Projection
TITAN sx+ 3D, Dual 3D, Ultra Contrast
User Manual
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.
Each time a new lens is
fitted to the projector,
the calibration procedure
must be carried out. See
Setup menu, in Section 4.
Controlling the projector.
For more information about
Throw ratio factor (TRF), see
Useful lens calculations, later
in this section.
Choosing a lens
A number of lenses are available for use with the projector. Which lens you choose
will depend on the screen size, image aspect ratio, projection distance and light
output.
The lenses available and their part numbers are listed below:
High Brightness
High Contrast
0.73 : 1 fixed lens
105-607
107-195
1.2 : 1 fixed lens (3 - 15m)
105-608
105-608
1.2 : 1 fixed lens (1.2 - 2m)
105-609
105-609
1.26 - 1.61 : 1 zoom lens
109 236
109-359
1.5 - 2.02 : 1 zoom lens
105-610
107-196
2.02 - 2.77 : 1 zoom lens
105-611
107-197
2.77 - 4.51 : 1 zoom lens
105-612
107-198
4.51 - 7.53 : 1 zoom lens
105-613
107-199
7.5 - 11.2 : 1 zoom lens
109-235
109-358
If you are simply connecting the output of a camera or computer directly to the
projector, then the image size (in pixels) may well be fixed. If, however, you are
using commercially available image processing equipment, such as the Digital
Projection VIP2000, you may be able to resize the image to fit the DMD.
If the image does not fill the full width of the DMD, this effectively increases the
throw ratio of the lens. This can be corrected for by applying a Throw ratio factor.
Method one: using the lens chart
For the screen sizes listed below, use the chart on the following pages, to choose
the most suitable lens.
any full width image, including:
4:3 = 1.33:1
1400 x 1050 pixels (native resolution)
16:10 = 1.6:1
1400 x 875 pixels
1.66:1 (Vista)
1400 x 843 pixels
16:9 = 1.78:1
1400 x 788 pixels
1.85:1
1400 x 757 pixels
2.35:1 (Scope)
1400 x 596 pixels
Method two: by calculation
See the calculations, on the page immediately following the lens chart.
