If you've ever tried to set up a projector you'll be familiar with the struggle of getting a perfectly rectangular image on the wall. This is because the lens of projector has to be perpendicular to ...

Keystone correction helps adjust the shape of the projected image, either manually or automatically. Be cautious of using excessive keystone correction to avoid a reduction in image fidelity. Consider ...

If the image on your screen or wall is not the right shape after setting up your video projector, keystone correction might help Unlike a TV, setting up a video projector is a lot more complicated.