The Canon T2i is compatible with Magic Lantern firmware. Spokesmen for the FBI soon confirmed the existence of a program called Magic Lantern. Transparent variations for magic lantern projection have been produced. Several types of projection systems existed before the invention of the magic lantern. There have been many different experiments involving sorts of movement with the magic lantern. Transparent or cut-out variations were suggested for use with the magic lantern. Movement of projected images was also possible by moving the magic lantern itself. He is credited as the inventor of the magic lantern, described in correspondence of 1659. By using the custom firmware Magic Lantern, some Canon DSLRs can perform trap focus. The magic lantern would prove a perfect successor. One example of such firmware is Magic Lantern. Each time the camera is started, there is an option to disable Magic Lantern. Around 1659 the magic lantern was developed by Christiaan Huygens. Magic Lantern is deployed as an e-mail attachment. These shows could include a circus, vaudeville show, burlesque show, or a magic lantern show.