Managing Projector Image Distortion
Take a look at the image above. Do you see the stone at the center of the arch? You know, the one with the arrow pointing right at it? Well, in the world of architecture, which is several years older than the audiovisual world, they call that center stone (as you can tell from the image) a keystone. Look closer. Now, where have you seen that sort of trapezoid shape before? Here’s a hint – think about the last time you set up a projector on a conference room table. You may hav