Digital Projection Titan Xg-500 User Manual
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Rev B 02/2007 Page 2.1 2. Installation Contents Screen requirements ......................................................................................................................... 2.2 Aspect ratio ...................................................................................................................................... 2.2 Fitting the image to the DMD ............................................................................................................. 2.2 Images displayed full width ............................................................................................................... 2.2 Images displayed full height .............................................................................................................. 2.2 Diagonal screen sizes ..................................................................................................................... 2.3 Fitting the image to the screen ........................................................................................................... 2.4 Positioning the screen and projector ................................................................................................... 2.5 Choosing a lens .................................................................................................................................. 2.6 Choosing a lens using the lens charts ................................................................................................. 2.7 Full width images, including 2.35:1, 1.85:1, 16:9, 1.66:1, 4:3 ..................................................................... 2.7 example ....................................................................................................................................... 2.7 Full height image 5:4 ....................................................................................................................... 2.8 Choosing a lens by calculation ........................................................................................................... 2.9 example ....................................................................................................................................... 2.9 Useful lens calculations .................................................................................................................. 2.10 Lens extension ............................................................................................................................. 2.10 Fitting the lens .................................................................................................................................... 2.11 Shifting the image............................................................................................................................. 2.12 Mounting the projector .................................................................................................................... 2.13 Chassis adjustment ......................................................................................................................... 2.13 Fitting the optional rigging frame....................................................................................................... 2.13 Adjusting the rigging frame .............................................................................................................. 2.14 Stacking projectors .......................................................................................................................... 2.15 Connecting the projector ................................................................................................................ 2.16 Signal Inputs .................................................................................................................................. 2.16 EDID handshaking on the DVI and RGB2 inputs .................................................................................. 2.16 Control connection examples ........................................................................................................... 2.17 LAN connection ............................................................................................................................ 2.17 RS232 connection ......................................................................................................................... 2.17 Power connection ........................................................................................................................... 2.18
Page 2.2 Rev B 02/2007 2. Installation Digital Projection TITAN XG-500 User Manual Notes The images are shown here scaled automatically by the projector. The image may be scaled differently if the Aspect Ratio is set differently in the Picture or Geometry menus. full height = 768 pixels 5:4 = 1.25 = 960 pixels 4:3 = 1.33:1 = 1024 pixels (native resolution) Screen requirements Aspect ratio Fitting the image to the DMD If the source image supplied to the projector is smaller than 1024 x 768 pixels, then the image will not fi ll the DMD. The following example shows how a number of common formats may be displayed. Images displayed full width Images displayed full height 2.35:1(Scope) = 435 pixels full width = 1024 pixels 1.85:1 = 553 pixels 16:9 = 1.78:1 = 576 pixels 1.66:1 (Vista) = 616 pixels 4:3 = 1.33 = 768 pixels (native resolution)
Rev B 02/2007 Page 2.3 Digital Projection TITAN XG-500 User Manual 2. Installation Diagonal screen sizes Screen sizes are sometimes specifi ed 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 .023m) H = D x 0.39in (D x .01m) 1.85:1 W = D x 0.88in (D x .022m) H = D x 0.47in (D x .012m) 16:9 = 1.78:1 W = D x 0.87in (D x .022m) H = D x 0.49in (D x .0125m) 1.66:1 (Vista) W = D x 0.86in (D x .022m) H = D x 0.52in (D x .013m) 4:3 = 1.33:1 (native aspect ratio) W = D x 0.8in (D x .02m) H = D x 0.6in (D x .015m) 5:4 = 1.25:1 W = D x 0.78in (D x .02m) H = D x 0.625in (D x .016m) Notes D = diagonal (inches) W = width H = height
Page 2.4 Rev B 02/2007 2. Installation Digital Projection TITAN XG-500 User Manual Fitting the image to the screen It is important that your screen is of suffi cient 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 insuffi cient height or width, you will have to reduce the overall image size in order to display the full image on your screen. Notes 1 2 3 4 5 6 7 8 9 10 Screen width Screen height 4:3 5:4 16:9 2.35:1 Aspect ratio 10 9 8 7 6 5 4 3 2 1 2.35:1 (Scope) W = H x 2.35 H = W x 0.426 1.85:1 W = H x 1.85 H = W x 0.54 16:9 = 1.78:1 W = H x 1.78 H = W x 0.56 1.66:1 (Vista) W = H x 1.66 H = W x 0.6 4:3 = 1.33:1 (native aspect ratio) W = H x 1.33 H = W x 0.75 5:4 = 1.25:1 W = H x 1.25 H = W x 0.8 1.85:1 1.66:1
Rev B 02/2007 Page 2.5 Digital Projection TITAN XG-500 User Manual 2. Installation Positioning the screen and projector For optimum viewing, the screen should be a fl at surface perpendicular to the fl oor. The bottom of the screen should be 1.2m (4 feet) above the fl oor 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 distance between the back row and the screen should be a maximum of 8 times the screen height. The screen viewing area should be within a 60° range from the face of the screen. Notes The projector should be installed as close to the power outlet as possible. The power connection should be easily accessible, so that it can be disconnected in an emergency. Ensure that there is at least 30cm (12in) of space between the ventilation outlets and any wall, and 10cm (4in) on all other sides. Do not install the projector close to anything that might be affected by its operational heat, for instance, polystyrene ceiling tiles, curtains etc. The image can be fl ipped for rear projection (see section 4. Using the menus, Image menu) and displayed without the need for extra mirrors or equipment. However, you must ensure that there is suffi cient distance behind the screen for the projector to be correctly located. Rear installation is generally more complicated and advice should be sought from your local dealer before attempting it.
Page 2.6 Rev B 02/2007 2. Installation Digital Projection TITAN XG-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, projection distance and light output. The lenses available and their part numbers are listed below: 0.8 : 1 fi xed lens 001-734 1.2 : 1 fi xed lens 001-735 1.5 - 1.8 : 1 zoom lens 001-736 1.8 - 2.25 : 1 zoom lens 001-737 2.25 - 3.0 : 1 zoom lens 001-738 3.0 - 4.5 : 1 zoom lens 001-739 4.5 - 7.0 : 1 zoom lens 001-740 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 fi xed. If, however, you are using commercially available image processing equipment, such as the Digital Projection VIP1000, you may be able to resize the image to fi t the DMD. If the image does not fi ll 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 charts For the screen sizes listed below, use the charts on the following pages, to choose the most suitable lens. Full width images, including: 2.35:1 (Scope) 1024 x 435 pixels 1.85:1 1024 x 553 pixels 16:9 = 1.78:1 1024 x 576 pixels 1.66:1 (Vista) 1024 x 616 pixels 4:3 = 1.33:1 1024 x 768 pixels (native resolution) Full height images A Throw ratio factor (TRF) has been applied to the following chart: 5:4 = 1.25:1 960 x 768 pixels TRF = 1.07 Method two: by calculation See the calculations, on the page immediately following the lens chart.
Rev B 02/2007 Page 2.7
Digital Projection TITAN XG-500 User Manual 2. Installation
Notes
This chart has a TRF of 1.0, for
use with the following images:
Choosing a lens using the lens charts
Use the charts on this page and on the following pages to choose which lens best
suits your application.
Full width images, including 2.35:1, 1.85:1, 16:9, 1.66:1, 4:3
example
For a screen width of 5m at a distance of 13m, the 1.8 - 2.4: 1 zoom lens would
be best suited.
For the same screen size at a distance of 18m, the 2.4 - 3.6: 1 zoom lens would
be best suited.
if you need to be more precise, then use the calculations on the page immediately
following the lens charts. •
•
2.35:1 (Scope), 1.85:1
16:9 = 1.78:1, 1.66:1 (Vista)
4:3 = 1.33:1
1.2 : 1 fi xed lens
001-7351.5 - 1.8 : 1
zoom lens
001-7361.8 - 2.25 : 1
zoom lens
001-7373.0 - 4.5 : 1
zoom lens
001-7394.5 - 7.0 : 1
zoom lens
001-740
0.8 : 1 fi xed lens
001-734
feet
metres Screen width
5 10 15 20 25 30 metres
16 33 49 66 82 98 feet 33 10
16 5
Throw distance
2.25 - 3.0 : 1
zoom lens
001-738
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2. Installation Digital Projection TITAN XG-500 User Manual
Notes
This chart has a TRF of 1.07,
for use with the following image:
5:4 = 1.25:1
Lens charts continued
Full height image 5:4
Use the chart below to choose which lens best suits your application.
if you need to be more precise, then use the calculations on the page immediately
following the lens charts.
feet
metres Screen width
5 10 15 20 25 30 metres
16 33 49 66 82 98 feet 33 10
16 5
Throw distance 1.2 : 1 fi xed lens
001-7351.5 - 1.8 : 1
zoom lens
001-7361.8 - 2.25 : 1
zoom lens
001-7373.0 - 4.5 : 1
zoom lens
001-7394.5 - 7.0 : 1
zoom lens
001-740
0.8 : 1 fi xed lens
001-7342.25 - 3.0 : 1
zoom lens
001-738
Rev B 02/2007 Page 2.9
Digital Projection TITAN XG-500 User Manual 2. Installation
Notes
The Throw ratio for a particular
lens is fi xed, and assumes that
the image fi lls the width of the
DMD.
For images that do not fi ll the
width of the DMD, the Throw
ratio is effectively increased. To
correct for this, a Throw Ratio
Factor (TRF) is used.
The lenses available and their
part numbers are listed below:
0.8 : 1 fi xed lens 001-734
1.2 : 1 fi xed lens 001-735
1.5 - 1.8 : 1 zoom lens 001-736
1.8 - 2.25 : 1 zoom lens 001-737
2.25 - 3.0 : 1 zoom lens 001-738
3.0 - 4.5 : 1 zoom lens 001-739
4.5 - 7.0 : 1 zoom lens 001-740
Choosing a lens by calculation
For any screen size not listed above, or if you need to be more precise, then use the
calculations below.
Identify actual width of the image in pixels.
Calculate the Throw Ratio Factor: TRF = DMD width (1024)
Image width in pixels
Identify the screen width required.
Identify the throw distance required.
Throw distance calculations are based on the distance from the outer end of the
lens, which will vary from lens to lens. Once a lens has been chosen, the fi gures
can be checked using the lens extension values given on the next page.
Calculate the throw ratio required. Throw ratio = Throw distance
Screen width x TRF
Choose a lens with the required throw ratio.
Check from the lens charts or the specifi cation (see section 7. Appendix), that
the lens chosen has a suffi cient throw range.
example
An image, 800 x 600 pixels, screen width 6.5m, throw distance 18m from the
outer end of the lens.
Throw Ratio Factor (TRF) = 1024 = 1.28
800
Throw ratio required = 18 = 2.16
6.5 x 1.28
Choose the 1.8 - 2.4 zoom lens. •
•
•
•
•
•
•
•
•
•
Page 2.10 Rev B 02/2007
2. Installation Digital Projection TITAN XG-500 User Manual
Notes
The Throw ratio for a particular
lens is fi xed, but assumes that
the image fi lls the width of the
DMD.
For images that do not fi ll the
width of the DMD, the Throw
ratio is effectively increased. To
correct for this, a Throw Ratio
Factor (TRF) is used.
Lens extension is measured
when the lens is focused at
infi nity, and fully extended.
At other focus settings, the
extension could be up to 10mm
less
Useful lens calculations
The following lens calculations may be useful:
Throw ratio = Throw distance
Screen width
Throw ratio factor (TRF) = DMD width in pixels = 1024
image width in pixels image
width in pixels
Therefore:
Screen width = Throw distance
Throw ratio x TRF
Throw distance = Screen width x Throw ratio x TRF
Lens extension
The throw distance calculated above is to the outer end of the lens. For each lens,
the nominal distance between the front of the projector and the outer end of the lens
(lens extension) will be as listed below.
Lens extension
0.8 : 1 fi xed lens 001-734 100 mm (3.9 in)
1.2 : 1 fi xed lens 001-735 75 mm (3.0 in)
1.5 - 1.8 : 1 zoom lens 001-736 47 mm (1.8 in)
1.8 - 2.25 : 1 zoom lens 001-737 1 mm (0.1 in)
2.25 - 3.0 : 1 zoom lens 001-738 5 mm (0.2 in)
3.0 - 4.5 : 1 zoom lens 001-739 5 mm (0.2 in)
4.5 - 7.0 : 1 zoom lens 001-740 12 mm (0.5 in)
lens extension,
measured from front
of corner post