The Elmo TT-12 Document Camera and CRP-261 LCD Projector is a set designed for classroom use and consists of an interactive camera and a projector that syncs up with the camera"s live-projection functions.The camera connects to the projector and to a computer - Mac or PC -and offers two categories of use. It lets teachers apply features, such as picture-in-picture, to class material being projected onto a wall and it allows class sessions to be captured in high-definition video that can be posted online for students and parents. The features applicable by part of a software called Image Mate that comes included with the camera. In addition to picture-in-picture, Image Mate offers split-screen, highlights, masks, color filters, Mosaic and an annotation tool that works by mouse. For normal projection, class documents need only be placed under the camera eye. But for projection with a feature applied, in addition to what"s under the camera eye, images separately captured can be incorporated, as they would be in picture-in-picture.The camera has a 3.4 megapixel CMOS sensor that captures bright and colorful video and photos and an internal mic that records sound. A jack for an external mic is also available. Shots can be gotten from almost any angle per a swivel-adjustable arm and, by the combination of a 12x optical zoom and an 8x digital zoom, details can be magnified by 96 times without any distortion. Focus can be set manually or set automatically at the tap of