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Review Summary
The Elmo TT-12 Document Camera is a classroom device that connects to a computer - Mac or PC - and to a projector 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 are 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 a button. Files can be saved to a connected computer or internally via USB/SD/SDHC slots. Output is by HDMI out and audio line out and is at 30 frames-per-second and thus in smooth, full-motion video. Different output resolutions up to 1080p HD can be selected at the flip of a switch.
For control, a control panel and a remote control are included. However, the camera is compatible with ELMO's CRA-1 wireless tablet that if incorporated would replace not only the control panel and remote control but also a connected computer.