Matrox Axio Installation And User Manual page 257

However, you can preview the SD output using the secondary SDI output from
Axio LE.
From the Preview Type menu, select one of the following options for the
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preview:
Select this to view your composition or animation.
Video
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Alpha Channel
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animation's grayscale alpha-key (matte) information.
From the Scaling menu, select one of the following options for your preview
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output:
Scale to fit Select this to scale your output to fit your video monitor. The
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aspect ratio of your project format will be preserved.
Original Size
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are playing back HD clips in an SD project, your output will be centered
on your video monitor.
Select this to view only your composition's or
Select this to output your video without any scaling. If you
Configuring the Matrox WYSIWYG Control Panel
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