| Glossary > Photography >Sensors
Sensors The sensor is the heart of all digital cameras. It's the electronic chip that takes incoming light and converts it to a digital file. The density of the sensor determines a camera's overall picture quality. The camera can have a 1-, 2-, or 3- megapixel sensor. This means it has millions (the mega in megapixel) of light-sensitive photoreceptor cells.
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