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Chapter 8. How to Make a Great Print > It's All at the Push of a Button

It's All at the Push of a Button

Inside your digital camera is a little strip of light-sensitive material, and it's this strip that is the heart of digital photography. This strip is actually a silicon chip that's called either a CCD or a CMOS sensor, depending on how it's built. In several places in this book I've referred to this chip as a digital imaging sensor (to avoid having to explain this more than once), but people often just call it a CCD for short.

On the face of the sensor is a grid of dots laid out in straight rows, with one row stacked on top of another row. These dots are called pixels (short for pixel element), and it's the number of pixels on the CCD that determines the camera's resolution, or how much detail the camera can capture. That resolution is measured in megapixels, which is short for 1 million pixels.


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