Digital Projection Projector M-Vision 930 3D Series User Manual

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Reference Guide
SCREEN REQUIREMENTS
WUXGA images displayed full heightNotes
 Only WUXGA or UXGA images 
can fill the full height of the DMD ™, 
using all 1200 pixels without scaling.
 full height = 1200 pixels
WUXGA = 16:10 = 1.6:1 = 1920 pixels UXGA = 4:3 = 1.33:1 = 1600 pixels
   
Digital Projection M-Vision 930 Series 
Rev C Februar y 2015  

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Reference Guide
SCREEN REQUIREMENTS
Diagonal screen sizes
Screen sizes are sometimes specified by their diagonal size (D). 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 into w\
idth and 
height, at various aspect ratios.   
2.35:1 (Scope) 
W = D x 0.92 H = D x 0.39
1.85:1 
W = D x 0.88 H = D x 0.47
16:9 = 1.78:1 
W = D x 0.87...

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SCREEN REQUIREMENTS
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 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 image on 
your screen.
14:3 = 1.33:1
W = H x 1.33, H = W x 0.75
216:10 = 1.6:1...

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SCREEN REQUIREMENTS
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 1.2 m (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 distance between the back row and the screen...

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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 control  in the 
Operating Guide .
 Whenever possible, position the 
projector so that the lens is...

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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...

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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,...

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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...

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ASPECT RATIOS EXPLAINED
Aspect ratio examples
Source: 4:3
Source: 16:9
Source: 16:10 (native)
Notes
Aspect Ratio: Source / 16:9Aspect Ratio: 16:10
1
1
Aspect Ratio: Source / 16:10
Aspect Ratio: Source / 4:3Aspect Ratio: 16:10
11
1Unused screen areas
   
Digital Projection M-Vision 930 Series 
Rev C Februar y 2015  

page 92
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 looks like this:
If we change the setting to...