Dell 1201MP, Owner'S Manual

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VGA— Video Graphics Array — 640 x 480 pixels count.
XGA— Extra Video Graphics Array — 1024 x 768 pixels count.
Zoom Lens— Lens with a variable focal length that allows operator to move the
view in or out making the image smaller or larger.
Zoom Lens Ratio— Is the ratio between the smallest and largest image a lens can
projector from a fixed distance. For example, a 1.4:1 zoom lens ratio means that a
10-foot image without zoom would be a 14-foot image with full zoom.
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