The zoom function on an NEC projector controls the size of the image. The diagonal image size can vary from 20 inches to 300 inches, depending on the projector's distance from the screen. The focus ...

The diagonal image on a monitor's screen. The diagonal is always longer than the horizontal measurement. When CRTs were the norm, their sizes were often overstated. For example, a 17" CRT was ...

There's no getting around the fact that the standout feature for the Hitachi CP-A100 ($2,495 street) is its ultra-short throw. In my tests, it projected a 43-inch diagonal image with the front of the ...