What is a document camera

A modern teacher uses in his work many useful devices that help simplify the learning process and make it more effective. Such devices can include a document camera, with its help you can form an image of any object in real time.

A document camera is an electronic device with which any item is displayed in an enlarged view. It can be connected to a computer monitor, TV or video projector - in this case, viewing is possible even on a normal wall.

How to choose a document camera

When choosing a device, various characteristics must be taken into account, on which the quality and usability will depend.

• Dimensions Along with portable document cameras weighing 2-3 kg, there are desktop models with a built-in light tablet.

• The tripod can be flexible or mechanical. The first is much more convenient, because it allows you to aim the camera more accurately.

• Type of output. The camera can be with a USB output for connecting to a computer, with VGA / TV / DVI connectors for connecting to a projector or TV.

• Optics determines how much and how qualitatively the image will be enlarged. If optical zoom does increase resolution, then digital only visually zooms in.