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What is CCD and why is it so important?
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k0k0m0
Senior Member
_ 		12. July 2005 @ 08:18 _ Link to this message    Send private message to this user   
I've been reading some guides and they keep on mentioning CCD, why is it the most important feature in buying a camcorder?
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TPFKAS
Senior Member
_ 		12. July 2005 @ 23:44 _ Link to this message    Send private message to this user   
CCD is the heart of a camcorder and stands for Charge Coupled Device. It transforms the incoming images into electical information. It works as follows. The CCD consists of a matrix of light sensitive sensors (each sensor representing one pixel). Light that enters the lens is projected on the CCD. The sensors generate a small electrical charge when it is hit by a light beam. These electrical charges are measured and this information is used to store the images coming in.

There are three important features to pay attention to: the amount of sensors on the CCD (i.e. the number of pixels), the size of the CCD and the signal-to-noise ratio. The first two are generally easy to find in the specifications of the camcorder, the last one may be a bit harder to find.

An increasing number of camcorders these days is equiped with three CCD's. In this case the incoming light is split in the three primary colors by a prism and each primary color is then projected on one CCD.
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