Unlike most conventional projectors used to project a prerecorded image, episcopes were used to project an image of physical objects, like books. To use this lens directly in a camera is ...

A film projector is no different in theory. Still images on a strip of celluloid are passed between a lamp and a lens, which project the images on to a screen. A device called a shuttle advances ...

The lens sits at the front of the projector with a glass cover built over it. There’s also a small camera on the front that plays part in the image correction. The Cinebeam Q could use more ...