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A document camera can enlarge the small print in books and project a printed page as if it were a traditional transparency by using a zoom feature. Document cameras do not require the lights to be dimmed in the room they are used in, contrary to what overhead projectors need to be visible. [3]
WolfVision Visualizer systems (also known as document cameras) are special optoelectronic devices designed to pick up images of 3-dimensional objects, documents, books, photos and other items from a non-reflective working surface, providing a high resolution output signal for video/data projectors, monitors, interactive whiteboards or ...
Although known for manufacturing their film projectors, a partnership with Canon between 1961 and 1976 offered still cameras. Many of their 35mm SLR cameras were manufactured by Canon with the Bell & Howell logo or Bell & Howell/Canon in place of the Canon branding. The firm dropped the production of movie cameras by the end of the 1970s.
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4. Canon CanoScan 9000F Mark II. The best flatbed scanner for photos. Connection: USB | Max resolution: 4800×4800dpi (photos and documents), 9600×9600dpi (film) | Used to scan: Photos, film ...
But with so many options available online — from pocket-sized projectors to 4k projectors to outdoor projectors — it can be hard find the right piece of equipment without breaking the bank.
A more modern type of overhead scanner is a document camera (also known as a video scanner), which uses a digital camera to capture a document all at once. Most document cameras output live video of the document and are usually reserved for displaying documents to a live audience, but they may also be used as replacements for image scanners ...
In educational settings, the specific role of the opaque projector has been superseded first by the overhead projector and later the document camera, a lighted table with a fixed video camera above it. The image from the camera is displayed using a separate projector. The document camera is also called a desktop presenter unit or opaque projector.
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