Barco UDM Series User Manual page 67

If you want to reach a lens shift beyond what is possible with the optical shift, you can also perform a digital
lens shift. This digital shift will occur on the DMD, rather than the lens holder. So take into account that this
additional shift is minimal and restricted to the limits of the chip used.
For the optical zoom and lens shift, navigate to Home → Installation → Lens.
Lens shift is only possible when the used lens has been fully calibrated. To calibrate the current
lens, navigate to System Settings → Maintenance → Lens Calibration.
The effect of Digital Zoom
This function zooms in the picture digitally. When zooming in, the center of the image will increase in size. This
means that the outer part of the picture will be outside the picture frame. When zooming out, the result is that
the picture will be smaller than the projectors picture frame. The area outside the rendered picture will then be
black.
For an example, see the following photos. The red lines in the figures represent the DMD outline.
Image 7-15: Originally picture, not digitally zoomed
Image 7-16: Picture digitally zoomed in
The effect of Digital Shift
This function will shift the picture digitally, meaning that the picture will be moved in any direction. As a result,
some parts of the picture might be shifted outside the DMD range.
For an example, see the following pictures. The red lines in the figures represent the DMD outline
Image 7-17: Picture digitally zoomed out
GUI – Image
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