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Digital Projection Projector M-Vision 930 3D Series User Manual
Digital Projection Projector M-Vision 930 3D Series User Manual
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![Page 96
page 88
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 range 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/5761/99623/w64_projector_manual_8413_d-95.png "Page 96
page 88
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 range 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 97
page 89
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.
vertical
(pixels)
horizontal
(pixels)
vertical
(frame)
horizontal
(frame)
0.84 - 1.03:1 lens±444±230±0.37±0.12
all other lenses±600±288±0.5±0.15
Notes
For more information on shifting
the lens,...](http://img.usermanuals.tech/thumb/5761/99623/w64_projector_manual_8413_d-96.png "Page 97
page 89
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.
vertical
(pixels)
horizontal
(pixels)
vertical
(frame)
horizontal
(frame)
0.84 - 1.03:1 lens±444±230±0.37±0.12
all other lenses±600±288±0.5±0.15
Notes
For more information on shifting
the lens,...")
![Page 98
page 90
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 is WUXGA with a 1920 x 1200 resolution, corresponding to an aspect ratio of 16:10
• The aspect ratio of the input signal: usually 4:3, 16:9 or 16:10
• The value of the Aspect Ratio setting of the projector:
• 16:9, 4:3, 16:10 and 5:4 stretch the image to the selected aspect ratio. 16:9 leaves black bars at the top and...](http://img.usermanuals.tech/thumb/5761/99623/w64_projector_manual_8413_d-97.png "Page 98
page 90
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 is WUXGA with a 1920 x 1200 resolution, corresponding to an aspect ratio of 16:10
• The aspect ratio of the input signal: usually 4:3, 16:9 or 16:10
• The value of the Aspect Ratio setting of the projector:
• 16:9, 4:3, 16:10 and 5:4 stretch the image to the selected aspect ratio. 16:9 leaves black bars at the top and...")
![Page 103
page 95
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 pulldown 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...](http://img.usermanuals.tech/thumb/5761/99623/w64_projector_manual_8413_d-102.png "Page 103
page 95
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 pulldown 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...")
page 93 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 frame 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 without 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 M-Vision 930 Series Rev C Februar y 2015
page 94 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 M-Vision 930 Series Rev C Februar y 2015
page 95 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 pulldown 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 M-Vision 930 Series Rev C Februar y 2015
page 96 Reference Guide APPENDIX A: LENS PART NUMBERS Appendix A: Lens Part Numbers Throw ratiosPart numberThrow distance rangeLens extension 0.84 - 1.03 : 1 zoom lens114-3131.5 - 10 m (4.9 - 32.8 ft)98.5 mm 1.56 - 1.86 : 1 zoom lens114-3142 - 12.4 m (6.6 - 40.7 ft)15.4 mm 1.85 - 2.40 : 1 zoom lens114-3152.5 - 15.9 m (8.2 - 52.2 ft)15.4 mm 2.40 - 4.00 : 1 zoom lens114-3164 - 26.6 m (13.1 - 87.3 ft)73.5 mm 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 focused at infinity, and fully extended. At other focus settings, the extension could be up to 10 mm less. Digital Projection M-Vision 930 Series Rev C Februar y 2015
page 97 Reference Guide APPENDIX B: LENS CHARTS Appendix B: Lens Char ts How to use the lens charts The lens charts on the following pages provide a quick guide to the type of lens needed for a particular projector. To use the lens charts, you need the following information: • The distance between the projector and the screen (throw distance) • The maximum width of your screen In the chart, find the point where the throw distance corresponds to the screen width, as shown in the example below. Example For a projector with • throw distance 7 m, and • screen width 3.5 m, the correct lens would be number 3 in the chart. Notes For information about individual lens part numbers and lens extension sizes, see Appendix A earlier in this document. 12 1Screen width 2Throw distance 1234 Screen width Throw distance 5 m (16.4 ft) 10 m (32.8 ft) 15 m (49.2 ft) 20 m (65.6 ft) 25 m (82.0 ft) 30 m (98.4 ft) 2 m (6.6 ft) 4 m (13.1 ft) 6 m (19.7 ft) 8 m (26.2 ft) 12 m (39.4 ft) 10 m (32.8 ft) Digital Projection M-Vision 930 Series Rev C Februar y 2015
page 98 Reference Guide APPENDIX B: LENS CHARTS TRC values applied in the charts Full width images Formats that fit the width of the DMD™ without applying a throw ratio correction (TRC) include: • 2.35:1 (Scope) 1920 x 817 pixels TRC = 1 • 1.85:1 (Flat) 1920 x 1037 pixels TRC = 1 • 1.78:1 (16:9) 1920 x 1080 pixels TRC = 1 • 1.66:1 (Vista) 1920 x 1156 pixels TRC = 1 • 1.6:1 (16:10) 1920 x 1200 pixels (native resolution) TRC = 1 Full height images A throw ratio correction (TRC) has been applied to the following charts: • 1.25:1 (5:4) 1500 x 1200 pixels TRC = 1.28 • 1.33:1 (4:3) 1600 x 1200 pixels TRC = 1.2 Notes For information about individual lens part numbers and lens extension sizes, see Appendix A earlier in this document. Digital Projection M-Vision 930 Series Rev C Februar y 2015
page 99 Reference Guide APPENDIX B: LENS CHARTS Full DMD™ width images Full width images are 2.35:1 (Scope), 1.85:1 (Flat) 1.78:1 (16:9), 1.66:1 (Vista) and 1.6:1 (native). 10.84 - 1.03 : 1 zoom lens 21.56 - 1.86 : 1 zoom lens 31.85 - 2.40 : 1 zoom lens 42.40 - 4.00 : 1 zoom lens Notes This chart has a TRC of 1.0, for use with the following images: For information about individual lens part numbers and lens extension sizes, see Appendix A earlier in this document. For WUXGA: 2.35:1 (Scope), 1.85:1 (Flat), 1.78:1 (16:9), 1.66:1 (Vista) and 1.6:1 (native) Throw distance Screen width 1234 10 m (32.8 ft) 20 m (65.6 ft) 30 m (98.4 ft) 5 m (16.4ft) 15 m (49.2 ft) 25 m (82.0 ft) 2 m (6.6 ft) 4 m (13.1 ft) 6 m (19.7 ft) 8 m (26.2 ft) 10 m (32.8 ft) 12 m (39.4 ft) Digital Projection M-Vision 930 Series Rev C Februar y 2015
page 100 Reference Guide APPENDIX B: LENS CHARTS 1.25:1 images 10.84 - 1.03 : 1 zoom lens 21.56 - 1.86 : 1 zoom lens 31.85 - 2.40 : 1 zoom lens 42.40 - 4.00 : 1 zoom lens Notes This chart has a TRC of 1.28, for use with the following images: For information about individual lens part numbers and lens extension sizes, see Appendix A earlier in this document. 1.25:1 (5:4) 10 m (32.8 ft) 20 m (65.6 ft) 30 m (98.4 ft) 5 m (16.4ft) 15 m (49.2 ft) 25 m (82.0 ft) 2 m (6.6 ft) 4 m (13.1 ft) 6 m (19.7 ft) 8 m (26.2 ft) 10 m (32.8 ft) 12 m (39.4 ft) Throw distance Screen width 1234 Digital Projection M-Vision 930 Series Rev C Februar y 2015
page 101 Reference Guide APPENDIX B: LENS CHARTS 1.33:1 images 10.84 - 1.03 : 1 zoom lens 21.56 - 1.86 : 1 zoom lens 31.85 - 2.40 : 1 zoom lens 42.40 - 4.00 : 1 zoom lens Notes This chart has a TRC of 1.2, for use with the following images: For information about individual lens part numbers and lens extension sizes, see Appendix A earlier in this document. 1.33:1 (4:3) 10 m (32.8 ft) 20 m (65.6 ft) 30 m (98.4 ft) 5 m (16.4ft) 15 m (49.2 ft) 25 m (82.0 ft) 2 m (6.6 ft) 4 m (13.1 ft) 6 m (19.7 ft) 8 m (26.2 ft) 10 m (32.8 ft) 12 m (39.4 ft) Throw distance Screen width 1234 Digital Projection M-Vision 930 Series Rev C Februar y 2015
page 102 Reference Guide APPENDIX C: SUPPORTED SIGNAL INPUT MODES Appendix C: Suppor ted Signal Input Modes 2D input modes StandardResolutionVertical Frequency (Hz)Total number of linesHorizontal Frequency (kHz)Component 1 & 2VGAHDMI 1 & 2 / HDBaseTDVI (DVI-D) SDTV480i720 x 48059.9452515.73ü 576i720 x 57650.0062515.63ü EDTV480p59720 x 48059.9452531.47üü 480p60720 x 48060.0052531.50üü 576p50720 x 57650.0062531.25üü HDTV720p501280 x 72050.0075037.50üüü 720p591280 x 72059.9475044.96üü 720p601280 x 72060.0075045.00üü 1080p231920 x 108023.98112526.97üü 1080p241920 x 108024.00112527.00üü 1080p251920 x 108025.00112528.13üü 1080p291920 x 108029.97112533.72üü 1080p301920 x 108030.00112533.75üü 1080i501920 x 108050.00112528.13üü 1080p501920 x 108050.00112556.25üüü 1080i591920 x 108059.94112533.72üü 1080p591920 x 108059.94112567.43üüü 1080i601920 x 108060.00112533.75üü 1080p601920 x 108060.00112567.50üüü COMPUTERVGA59640 x 48059.9452531.47üüü VGA60640 x 48060.0052531.50üüü MACI640 x 48066.6752535.00üü VGA75640 x 48075.0050037.50üüü Notes Digital Projection M-Vision 930 Series Rev C Februar y 2015