Lens shift
Moving the image up/down or left/right optically without tilting the projector.
Lens shift keeps full resolution and brightness, unlike digital keystone. Large-venue projectors offer generous vertical shift.
Related terms
- Keystone correctionCorrecting the trapezoid shape caused by projecting at an angle.
- Zoom lensA lens with an adjustable throw ratio range.
Put it into practice: throw-distance calculator · lumens calculator · intro to projection mapping