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Digital Projection Projector HIGHlite 660 3D Series User Manual
Digital Projection Projector HIGHlite 660 3D Series User Manual
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![Page 116
page 108
Reference Guide
POSITIONING THE IMAGE
Positioning The Image
The normal position for the projector is at the centre of the screen. Ho\
wever, you can set the projector above or below the centre, or to one side,
and adjust the image using the Lens shift feature (known as rising and falling front) to maintain a geometrically correct image.
Notes
For more information on shifting
the lens, see Lens menu in the
Operating Guide .
Whenever possible, position the
projector so that the lens is...](http://img.usermanuals.tech/thumb/5761/99405/w64_projector_manual_7563_d-115.png "Page 116
page 108
Reference Guide
POSITIONING THE IMAGE
Positioning The Image
The normal position for the projector is at the centre of the screen. Ho\
wever, you can set the projector above or below the centre, or to one side,
and adjust the image using the Lens shift feature (known as rising and falling front) to maintain a geometrically correct image.
Notes
For more information on shifting
the lens, see Lens menu in the
Operating Guide .
Whenever possible, position the
projector so that the lens is...")
![Page 117
page 109
Reference Guide
POSITIONING THE IMAGE
Any single adjustment outside the ranges specified on the following page may result in an unacceptable level of distortion, particularly at the
corners of the image, due to the image passing through the periphery of \
the lens optics.
If the lens is to be shifted in two directions combined, the maximum ran\
ge without distortion will be somewhat less, as can be seen in the
illustrations below.
Notes
For more information on shifting
the lens, see Lens...](http://img.usermanuals.tech/thumb/5761/99405/w64_projector_manual_7563_d-116.png "Page 117
page 109
Reference Guide
POSITIONING THE IMAGE
Any single adjustment outside the ranges specified on the following page may result in an unacceptable level of distortion, particularly at the
corners of the image, due to the image passing through the periphery of \
the lens optics.
If the lens is to be shifted in two directions combined, the maximum ran\
ge without distortion will be somewhat less, as can be seen in the
illustrations below.
Notes
For more information on shifting
the lens, see Lens...")
![Page 118
page 110
Reference Guide
POSITIONING THE IMAGE
Maximum offset range
The maximum offset range available with no distortion or vignetting is dependent on wh\
ich lens is used. Shifting the lens beyond its
undistorted limits may be physically possible, however you may experienc\
e some vignetting or distortion.
HIGHlite 660 3D WUXGAvertical
(pixels)
horizontal
(pixels)
vertical
(frame)
horizontal
(frame)
0.77 : 1 and 1.16:1 fixed lens±240±96±0.2±0.05
all zoom lens±720±288±0.6±0.15
HIGHlite 660 3D...](http://img.usermanuals.tech/thumb/5761/99405/w64_projector_manual_7563_d-117.png "Page 118
page 110
Reference Guide
POSITIONING THE IMAGE
Maximum offset range
The maximum offset range available with no distortion or vignetting is dependent on wh\
ich lens is used. Shifting the lens beyond its
undistorted limits may be physically possible, however you may experienc\
e some vignetting or distortion.
HIGHlite 660 3D WUXGAvertical
(pixels)
horizontal
(pixels)
vertical
(frame)
horizontal
(frame)
0.77 : 1 and 1.16:1 fixed lens±240±96±0.2±0.05
all zoom lens±720±288±0.6±0.15
HIGHlite 660 3D...")
![Page 119
page 111
Reference Guide
ASPECT RATIOS EXPLAINED
Aspect Ratios Explained
The appearance of a projected image on the screen depends on a combinati\
on of the following:
• The DMD™ resolution:
• 1080p with a 1920 x 1080 resolution, corresponding to an aspect ratio of 16:9\
• WUXGA with a 1920 x 1200 resolution, corresponding to an aspect ratio of 16:1\
0
• The aspect ratio of the input signal: 4:3, 16:9 or 16:10
• The value of the Aspect Ratio setting of the projector:
• Source - show the image with its...](http://img.usermanuals.tech/thumb/5761/99405/w64_projector_manual_7563_d-118.png "Page 119
page 111
Reference Guide
ASPECT RATIOS EXPLAINED
Aspect Ratios Explained
The appearance of a projected image on the screen depends on a combinati\
on of the following:
• The DMD™ resolution:
• 1080p with a 1920 x 1080 resolution, corresponding to an aspect ratio of 16:9\
• WUXGA with a 1920 x 1200 resolution, corresponding to an aspect ratio of 16:1\
0
• The aspect ratio of the input signal: 4:3, 16:9 or 16:10
• The value of the Aspect Ratio setting of the projector:
• Source - show the image with its...")
![Page 126
page 118
Reference Guide
ASPECT RATIOS EXPLAINED
Aspect ratio example: TheaterScope
The TheaterScope setting is used in combination with an anamorphic lens to restore 2.35:\
1 images packed into a 16:9 frame. Such images
are projected with black lines at the top and bottom of the 16:9 screen \
to make up for the difference in aspect ratios.
Without an anamorphic lens and without the TheaterScope setting applied, a 16:9 source containing a 2.35:1 image lo\
oks like this:
If we change the setting to...](http://img.usermanuals.tech/thumb/5761/99405/w64_projector_manual_7563_d-125.png "Page 126
page 118
Reference Guide
ASPECT RATIOS EXPLAINED
Aspect ratio example: TheaterScope
The TheaterScope setting is used in combination with an anamorphic lens to restore 2.35:\
1 images packed into a 16:9 frame. Such images
are projected with black lines at the top and bottom of the 16:9 screen \
to make up for the difference in aspect ratios.
Without an anamorphic lens and without the TheaterScope setting applied, a 16:9 source containing a 2.35:1 image lo\
oks like this:
If we change the setting to...")
page 113 Reference Guide ASPECT RATIOS EXPLAINED Aspect ratio examples for DMD™ resolution 1080p (continued) Source: 16:9 (native resolution) Notes Aspect Ratio: Source / Fill Display / Fill & Crop Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 114 Reference Guide ASPECT RATIOS EXPLAINED Aspect ratio examples for DMD™ resolution 1080p (continued) Source: 16:10 1Unused screen areas 2Cropped parts of the image Notes Aspect Ratio: Fill Display Aspect Ratio: Source Aspect Ratio: Fill & Crop 2 11 2 Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 115 Reference Guide ASPECT RATIOS EXPLAINED Aspect ratio examples for DMD™ resolution WUXGA Source: 4:3 1Unused screen areas 2Cropped parts of the image Notes Aspect Ratio: SourceAspect Ratio: Fill Display Aspect Ratio: Fill & Crop Aspect Ratio: Anamorphic 2 11 1 12 Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 116 Reference Guide ASPECT RATIOS EXPLAINED Aspect ratio examples for DMD™ resolution WUXGA (continued) Source: 16:9 1Unused screen areas 2Cropped parts of the image Notes Aspect Ratio: Source Aspect Ratio: Fill Display Aspect Ratio: Fill & Crop 2 1 1 2 Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 117 Reference Guide ASPECT RATIOS EXPLAINED Aspect ratio examples for DMD™ resolution WUXGA (continued) Source: 16:10 (native resolution) Notes Aspect Ratio: Source / Fill Display / Fill & Crop Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 118 Reference Guide ASPECT RATIOS EXPLAINED Aspect ratio example: TheaterScope The TheaterScope setting is used in combination with an anamorphic lens to restore 2.35:\ 1 images packed into a 16:9 frame. Such images are projected with black lines at the top and bottom of the 16:9 screen \ to make up for the difference in aspect ratios. Without an anamorphic lens and without the TheaterScope setting applied, a 16:9 source containing a 2.35:1 image lo\ oks like this: If we change the setting to TheaterScope, the black lines will disappear but the image will stretch vertically t\ o reach the top and bottom of the DMD™: An anamorphic lens will stretch the image horizontally, restoring the original 2.35 ratio: Notes Black margin – part of the source Black margin – part of the source Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 119 Reference Guide FRAME RATES AND PULLDOWNS EXPLAINED Frame Rates And Pulldowns Explained Interlaced and progressive scan A progressive scan is a method of updating the image by drawing all the lines of each fram\ e in a sequence. In contrast, interlaced video alternately scans odd and even lines. In old analog TV interlacing was commonly used as a way of doubling the refresh rate w\ ithout consuming extra bandwidth. The following artifacts are common with interlaced video: • edge tear (combing) The image lands between two fields and blurs. This is commonly observed when viewing rapid lateral movement. • aliasing (stair-stepping) The texture of the image becomes populated with unrealistic patterns. Aliasing occurs because of differences between the original frame rate and the destination format. • twitter The image shimmers, for example when showing rolling credits. This happens when the image contains thin horizontal lines that only appear in one field. Frame rates of image sources Original analog films are made at 24 fps and the whole frame is projected at once. To eliminate flicker and create an impression of continuous movement, the projector blades divide the images so that the \ viewer sees 48 frames per second. Interlaced video scans odd lines, then even. Two fields are blended into one image. NTSC video (60i) is 29.97 fps, or 59.94 fields per second. 24p video is progressive but without the benefit of projector blades dividing the images, so it looks jumpier on playback than film. 24p is the optimal format for projects that are finished on film. 30p is optimal for projects finished on video. It has fewer strobing issues than 24p in video playback. Notes Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 120 Reference Guide FRAME RATES AND PULLDOWNS EXPLAINED Pulldowns - conversion into destination formats Pulldowns are a method of converting a 24p source into a different destination format by adding extra frames to the source. 2:3 (nor mal) pulldown This method is used to convert a 24p source (film) into a 60i destination (NTSC video) by adding two extra fields for every four frames, effectively increasing the frame rate to 30 fps. The frame is split into fields and then two fields are repeated for every four original frames as shown in the illustration below. Notes Original film, 24 fps Field 1 (odd) Field 2 (even)Resulting video, 30 fps Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 121 Reference Guide FRAME RATES AND PULLDOWNS EXPLAINED 2:3:3:2 (advanced) pulldown This method is very similar to the normal pulldown. Unlike the normal pu\ lldown method, the resulting 30 fps video sequence contains only one frame containing fields from two different source frames. The advantage of this method is that it is easier to reverse, if necessa\ ry. Original film, 24 fps Field 1 (odd) Field 2 (even)Resulting video, 30 fps Notes The projector will use advanced pulldown on suitable video material, wherever possible. Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015
page 122 Reference Guide APPENDIX A: LENS PART NUMBERS Appendix A: Lens Part Numbers Throw ratios Lens extension (±2%)Throw distance rangePart number 0.77 : 1 fixed lens80 mm (3.2 in)1.3 - 2.5 m (4.3 - 8.2 ft)110-808 1.16 : 1 fixed lens54 mm (2.1 in)1.4 - 6.2 m (4.6 - 20.3 ft)110-809 1.45 - 1.74 : 1 zoom lens24 mm (1.0 in)1.8 - 9.3 m (5.9 - 30.5 ft)110-803 1.74 - 2.17 : 1 zoom lens02.2 - 11.8 m (7.2 - 38.7 ft)110-804 2.17 - 2.90 : 1 zoom lens02.7 - 15.4 m (8.9 - 50.5 ft)110-805 2.90 - 4.34 : 1 zoom lens03.6 - 22.5 m (11.8 - 73.8 ft)110-806 4.34 - 6.76 : 1 zoom lens05.5 - 35 m (18 - 115 ft)110-807 Notes The throw ratios given here apply only when the image fills the width of the DMD. For images that do not fill the width of the DMD, the throw ratio needs to be recalculated using a throw ratio correction (TRC). For further information, see Choosing A Lens and Appendix B: Lens Charts in this guide. Throw distance calculations are based on the distance from the outer end of the lens, which will vary from lens to lens. Lens extension is measured when the lens is focussed at infinity, and fully extended. At other focus settings, the extension could be up to 10 mm less. Digital Projection HIGHlite 660 3D Series Rev E Februar y 2015