Digital Projection Titan Sx+-500 User Manual

Rev B          02/2007
2. Installation
Contents
2. Installation2.1
Screen requirements ............................................................................................................... 2.2
Aspect ratio ..................................................................................................................................................... 2.2
Fitting the image to the...

Rev B          02/2007      page 2.2
2. InstallationDigital Projection TITAN sx+-500 User Manual
Scr een requirements
Aspect ratio
Fitting the image to the DMD
If the source image supplied to the projector is smaller than 1400 x 1050 pixels, then
the image will not fill the DMD. The following example shows how a number of
common formats may be displayed.
Images displayed full height
Images displayed full width
Notes
The images are shown here
scaled automatically by the
projector.
The image may be scaled...

Rev B          02/2007       page 2.3
Digital Projection TITAN sx+-500 User Manual2. Installation
Diagonal screen sizes
Screen sizes are sometimes specified by their diagonal size (D) in inches. When
dealing with large screens and projection distances at different aspect ratios, it is
more convenient to measure screen width (W) and height (H).
The example calculations below show how to convert diagonal sizes in inches into
width and height, at various aspect ratios.
2.35:1 (Scope)
W = D x 0.92in (D x...

Rev B          02/2007      page 2.4
2. InstallationDigital Projection TITAN sx+-500 User Manual
Fitting the image to the screen
It is important that your screen is of sufficient height and width to display images at
all the aspect ratios you are planning to use.
Use the conversion chart, or the sample calculations below to check that you are
able to display the full image on your screen. If you have insufficient height or width,
you will have to reduce the overall image size in order to display the full...

Rev B          02/2007       page 2.5
Digital Projection TITAN sx+-500 User Manual2. Installation
Positioning the screen and projector
For optimum viewing, the screen should be a flat surface perpendicular to the floor.
The bottom of the screen should be 1.2m (4 feet) above the floor and the front row
of the audience should not have to look up more than 30° to see the top of the
screen.
The distance between the front row of the audience and the screen should be at
least twice the screen height and the...

Rev B          02/2007      page 2.6
2. InstallationDigital Projection TITAN sx+-500 User Manual
Notes
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 and projection distance.
If you are simply connecting the output of a camera or computer directly to the
projector, then the image size (in pixels)...

Rev B          02/2007       page 2.7
Digital Projection TITAN sx+-500 User Manual2. Installation
Notes
For a 5:4 full height image,
measuring 1313 x 1050 pixels:
A Throw ratio factor (TRF) of
1.07 would need to be applied
for the chart to be correct.
(ie: multiply the required screen
width by 1.07 before consulting
the chart)
The lenses available and their
part numbers are listed below:
0.73 : 1 fixed lens 105-607
1.2 : 1 (3 - 15m) fixed lens 105-608
1.5 - 2.02 : 1 zoom lens 105-610
2.02 - 2.77 : 1 zoom...

Rev B          02/2007      page 2.8
2. InstallationDigital Projection TITAN sx+-500 User Manual
Notes
The Throw ratio for a particular
lens is fixed, but assumes that
the image fills the width of the
DMD.
For images that do not fill the
width of the DMD, the Throw
ratio is effectively increased. To
correct for this in these
calculations, a Throw Ratio
Factor (TRF) is used.
The lenses available and their
part numbers are listed below:
0.73 : 1 fixed lens
105-607
1.2 : 1 (3 - 15m) fixed lens 105-608
1.2 :...

Rev B          02/2007       page 2.9
Digital Projection TITAN sx+-500 User Manual2. Installation
Notes
The Throw ratio for a particular
lens is fixed, but assumes that
the image fills the width of the
DMD.
For images that do not fill the
width of the DMD, the Throw
ratio is effectively increased. To
correct for this in these
calculations, a Throw Ratio
Factor (TRF) is used.
Lens extension is measured
when the lens is focussed at
infinity, and fully extended. A t
other focus settings, the
extension could...

Rev B          02/2007      page 2.10
2. InstallationDigital Projection TITAN sx+-500 User Manual
Notes
Make sure the rear lens cap is
removed, before fitting the lens.
Make sure the front lens cap is
removed, before switching on
the projector.
Be careful not to scratch the
lens surfaces. If you do
accidentally touch a lens, then
clean the surface using a lens
paper.
The lens release lever should
always be set to the locked
position to prevent the lens
from falling out. Lens release
lever, open
Zoom...