Assertion: projector | /r/HasProperty | low
Facets:
Source sentences:
text: effect”—the image appears wider at the top when the projector is too low, or wider on one side when the projector is horizontally off center.
text: The "keystone effect" (or "keystoning") causes the projected image to appear wider at the top when the projector is too low, or wider on one side when the projector is horizontally off-center.
text: Vertical keystone correction fixes keystoning when the projector is too low or too high, but requires horizontal centering.