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 ...

Simply put, if a projector isn’t square to a wall, its image will be warped. To fix it, most low end models use digital keystone correction. The higher-end method that relies on adjusting the physical ...

Q: I purchased an Epson EX7220 projector for our training room, and for convenience I set the projector up on the countertop alongside the classroom (as pictured below). I hoped to use the built-in ...