Digital Projection M-vision 1080p-260 User Manual

							
Rev A May 2010 Page 2.3
Digital Projection M-Vision 1080p-260 User Manual  2. Installation

Examples of 4:3 images displayed with different aspect ratio settings
The 4:3 setting is best, unless there is some specific reason for wanting the smaller 
Native image, for instance, to maintain the same scale as other images from the 
same source.
If you are using an anamorphic lens, the 4:3 Narrow setting should be used.  The 
lens will stretch the image to the correct width.
Examples of 2.35:1 images displayed with different aspect ratio 
settings
The 16:9 setting is best, unless there is some specific reason for wanting the 
smaller Native image, for instance, to maintain the same scale as other images from 
the same source.
If you have an anamorphic lens, the Theaterscope setting would be a much better 
option. Because it uses the whole of the DMD, it will be a much brighter image than 
the letterboxed options shown above, and will fill a wider screen if this is available.
Notes
 The 4:3 image shown here has 
far fewer pixels than the 1920 x 
1080 of the DMD. Your image 
may be different.
 If you are using an  anamorphic  
lens, you will need to use the 
4:3 Narrow setting to correct the 
image.
 The 2.35 image shown here has 
far fewer pixels than the 1920 x 
1080 of the DMD. Your image 
may be different.
 To take advantage of the 
Theaterscope setting, you 
MUST have an anamorphic 
lens.
Theaterscope 
without Anamorphic lens
with Anamorphic lens, 
stretched to fill wider screen
4:3Native
16:9Native
4:3 Narrow 
without anamorphic lens
4:3 Narrow 
with anamorphic lens 
						

							
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2. Installation  Digital Projection M-Vision 1080p-260 User Manual

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 inc\
hes 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 (native aspect ratio) 
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)
16:10 = 1.6:1 
W = D x 0.85in  (D x .022m) H = D x 0.53in  (D x .014m)
4:3 = 1.33:1 
W = D x 0.8in  (D x .02m) H = D x 0.6in  (D x .015m)
D = diagonal (inches)
W = width
H = height 
Notes 
						

							
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Digital Projection M-Vision 1080p-260 User Manual  2. Installation

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 image on 
your screen.
Notes
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 (native aspect ratio) 
W = H x 1.78 H = W x 0.56
1.66:1 (Vista) 
W = H x 1.66 H = W x 0.6
16:10 = 1.6:1 
W = H x 1.6 H = W x 0.625
4:3 = 1.33:1 
W = H x 1.33 H = W x 0.75
1          2         3         4          5         6          7         8          9        10
Screen width
Screen height
4:3
16:9
2.35:1
Aspect ratio
10
9
8
7
6
5
4
3
2
1
1.85:1
1.66:1
16:10 
						

							
Page 2.6  Rev A May 2010
2. Installation  Digital Projection M-Vision 1080p-260 User Manual

Positioning the screen and projector
Optimum viewing position
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 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 flipped 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 sufficient 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. 
						

							
Rev A May 2010 Page 2.7
Digital Projection M-Vision 1080p-260 User Manual  2. Installation

Screen size vs throw distance
Throw distance is the distance measured from the front of the projector to the 
screen. This is an important calculation in any projector installation as it determines 
whether or not you have enough room to install your projector with the desired 
screen size, and if your image will be the right size for your screen.
Calculating screen width and throw distance
Throw Distance  =  Screen Width  x  Lens Throw Ratio
Screen Width  = 
Throw Distance   
        Lens Throw Ratio
Three models of the projector are available, fitted with the following lenses:
     Throw Ratio   Focus range
Fixed lens    0.73:1      to be confirmed
Short-throw lens  1.56–1.86:1 zoom  2–7m (6.6 - 23ft)
Long-throw lens  1.85–2.40:1 zoom  2.5–10m (8.2 - 32.8ft)
Two optional converter lenses are available, which modify the throw ratios as shown 
below:
     0.8x converter   1.25x converter
Short-throw lens  1.25–1.49:1    1.95–2.33:1
Long-throw lens  1.48–1.92:1    2.31–3:1
These throw ratios are correct for images that full the full width of the DMD. For 
images that do not fill the full width, the throw ratio will be larger . For 4:3 images, 
the throw ratio is increased by a factor of 1.33. The effect of this can be seen on the 
lens charts on the following pages.
•
•
•
•
•
Notes
 For more information about the 
relationship between screen 
size, throw distance and 
converter lenses, see the Lens 
charts on the following pages.
 Do not confuse the focus range 
with the zoom range:
  - the focus range is the distance 
over which the image can be 
focused using the focus ring.
  - the zoom range is the range 
over which the throw ratio can 
be changed using the zoom 
ring.
 The converter lens is not 
physically compatible with the 
Fixed lens. 
						

							
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2. Installation  Digital Projection M-Vision 1080p-260 User Manual

NotesLens charts for the short throw zoom lens
example
You can display a 16:9 image with a screen width of 3m at a distance of 5m, but 
for a screen width of 3.5m, you will need to use the 0.8x converter lens.
•
Throw distance
Screen width
        1       2       3       4       5       6       7       8       9      10     11     12 metres
        3       7      10     13     16     20     23     26     30     33     36     39 feet
 
23  7
  20  6
  16  5
  13  4
  10  3
  7  2
  3  1
using the 1.25x 
converter lens
using the 0.8x 
converter lens
without a 
converter lens
Throw distance
Screen width
        1       2       3       4       5       6       7       8       9      10     11     12 metres
        3       7      10     13     16     20     23     26     30     33     36     39 feet
 
23  7
  20  6
  16  5
  13  4
  10  3
  7  2
  3  1
using the 1.25x 
converter lens
using the 0.8x 
converter lens
without a 
converter lens
feetmetres
16:9 images
4:3 images 
						

							
Rev A May 2010 Page 2.9
Digital Projection M-Vision 1080p-260 User Manual  2. Installation

Notes
 Note that for the long throw 
lens, there is some overlap 
between the range available 
using the converter lenses and 
that using no converter lens.
Lens charts for the long throw zoom lens
example
You can display a 4:3 image with a screen width of 3m at a distance of 6m, but 
for a screen width of 2m, you will need to use the 1.25x converter lens.
•
Screen width
        1       2       3       4       5       6       7       8       9      10     11     12 metres
        3       7      10     13     16     20     23     26     30     33     36     39 feet
 
23  7
  20  6
  16  5
  13  4
  10  3
  7  2
  3  1
using the 1.25x 
converter lens
using the 0.8x 
converter lens
without a 
converter lens
Throw distance
Screen width
        1       2       3       4       5       6       7       8       9      10     11     12 metres
        3       7      10     13     16     20     23     26     30     33     36     39 feet
 
23  7
  20  6
  16  5
  13  4
  10  3
  7  2
  3  1
using the 1.25x 
converter lens
using the 0.8x 
converter lens
without a 
converter lens
feetmetres
16:9 images
4:3 images 
						

							
Page 2.10  Rev A May 2010
2. Installation  Digital Projection M-Vision 1080p-260 User Manual

Notes
 If the projector is fitted with the 
fixed 0.73:1 lens then there are 
no mechanical controls for lens 
shift.
Shifting the image
Ideally, the projector should be positioned perpendicular to the screen.
The normal position for the projector is at the centre of the screen. However , you 
can set the projector above or below the centre, or to one side, and adjust the image 
using the Lens shift controls on the top of the projector to maintain a geometrically 
correct image.
The image can be shifted by up to:
± 0.6 of the height of a full screen image (known as 120% shift)
± 0.3 of the width of a full screen image (known as 60%)
and can be shifted by the full amount both horizontally and vertically together .
•
•
Horizontal shift 
adjustmentVertical shift 
adjustment
(Rotate the 
badge)
± 0.6 H
± 0.6 H
± 0.3 W± 0.3 W 
						

							
Rev A May 2010 Page 2.11
Digital Projection M-Vision 1080p-260 User Manual  2. Installation

Mounting the projector
The four adjustable feet under the chassis allow the projector to be lowered onto a 
flat surface without any danger of hands being trapped between the bottom frame 
and the surface.
Ceiling mounting
 The projector is designed to be used on a flat surface, but it can be suspended 
from a ceiling. Three M4 mounting holes with a 0.7mm pitch are provided under the 
projector to allow bolting to a ceiling mounting plate.
To use the projector upside down, set Ceiling mode to On, in the System menu, to 
invert the image.
Level adjustment
If the projector is to be operated from a flat surface such as a projector table, then 
adjustment of projector level should be made by turning the four feet under the 
chassis.
Ideally, the projector should be positioned perpendicular to the screen, and the lens 
shift controls used to align the image with the screen, to maintain a geometrically 
correct image.
Notes
 BEFORE INSTALLING THE 
PROjECTOR, READ  ALL THE 
WARNINGS BELOW  AND 
ALL  THOSE IN  IMpOrTANT 
INFOrMATION  AT THE 
FRONT OF THIS MANUAL.
  The projector weighs 
approximately 9 kg (20 lbs). 
Use safe handling techniques 
when lifting the projector.
 Make sure that the surface, 
ceiling or rigging that is 
to support the projector is 
capable of supporting the 
weight of the projector.
 Backup safety chains or 
wires should always be 
used with ceiling mount 
installations.
 Do not tilt the projector more 
than  ±12° in either direction 
when in use, as this may 
cause serious lamp failure, 
damage the lamp module 
and cause extra cost on 
replacement.
±12°
±12°
Dimensions 
in mm 
						

							
Page 2.12  Rev A May 2010
2. Installation  Digital Projection M-Vision 1080p-260 User Manual

Notes
 For more detailed information 
about using the menus, see 
section 4. Controlling the 
projector.
 Do not try to stack more than 
three projectors.
 When stacking projectors, 
the stack MUST be vertical, to 
ensure that the stresses are 
distributed to all four chassis 
corners.
 Make sure that the surface, 
ceiling or rigging that is 
to support the projector is 
capable of supporting the 
combined weight of all the 
projectors.
 Do not place heavy objects 
on top of the projector 
chassis. Only the chassis 
corners are capable of 
withstanding the weight of 
another projector.
 Backup safety chains or 
wires should always be 
used with ceiling mount 
installations.
  If the projector is fitted with the 
fixed 0.73:1 lens then there are 
no mechanical controls for lens 
shift.
Stacking projectors
The projector is capable of supporting the weight of up to three other projectors 
safely. The stack should be positioned vertically and perpendicular to the screen, 
and the lens shift controls used to align the image with the screen, to maintain a 
geometrically correct image.
Carefully lower each projector down onto the top of the others, making sure that 
they are vertically aligned with each other, and protected from becoming pushed 
over.
Align the images from the projectors, using the Lens shift controls on the top of 
the projector.
•
•
Rear projection
To use rear projection, set Rear Projection to On, in the System menu, to reverse 
the image.
In rear-screen applications where space behind the projector is limited, a mirror may 
be used to fold the optical path. The position of the projector and mirror must be 
accurately set. If you are considering this type of installation, contact your dealer for 
assistance