Digital Imaging « Martin Microscope The heart of every digital camera is the Sensor, usually either a CCD or a CMOS type. All Sensors are analog devices, converting photons into electrical signals. The process by which the analog information is changed to digital is called Analog to Digital
How Does a Digital Camera Work? - For Dummies A digital camera, on the other hand, uses a grid (or an array) of photosensors to record the incoming pattern of light. Each sensor returns an electrical current when it’s struck by the incoming light.
