Aspect Ratio; Screen Requirements; Fitting The Image To The Dmd; Diagonal Screen Sizes - Digital Projection LIGHTNING 30sx+c User Manual

2. Installation

Screen requirements

Aspect ratio

Fitting the image to the DMD

If the source image supplied to the projector is smaller than 1400 x 1050 pixels,
then the image will not fi ll the DMD. The following example shows how a number of
common formats may be displayed without the use of an external scaling processor.
1400 x 788 (16:9)
1400 x 757 (1.85:1)
1400 x 596 (2.35:1)
1313 x 1050 (5:4)

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 aspect ratio

W = D x 0.92in (D x .023m)
2048x1080
W = D x 0.88in (D x .022m)
16:9 aspect ratio
W = D x 0.87in (D x .022m)
4:3 aspect ratio, native resolution
W = D x 0.8in (D x .02m)
5:4 aspect ratio
W = D x 0.78in (D x .02m)
Page 2.2
Digital Projection
1400 pixels
W = width
H = D x 0.39in (D x .01m)
H = D x 0.47in (D x .012m)
H = D x 0.49in (D x .0125m)
H = D x 0.6in (D x .015m)
H = D x 0.625in (D x .016m)
LIGHTNING 30sx+c, 40sx+c
The resolution of the DMD fi tted
to the projector is 1400 x 1050
pixels.
This projector does not perform
any image processing - the
MMS 1000 is recommended for
this purpose.
User Manual
Notes
105-941A January 2007