 For years the quality of digital camera was measured by the number of megapixels that the camera produced. The first digital cameras could only handle 1 or 2 megapixel of data, but now it is not unusual to find a camera capable of 10 or more megapixels.
The megapixel count isn't the sole indicator of image quality. The processor, lens, and other components contribute greatly to the image quality. The megapixel count, however, does have a lot to do with how large you can print the picture while keeping it crisp and clear.
Look at the megapixel count to determine the size of the prints that the camera can produce. If you want others to view your photos in email or to post them on the Web, a 2- or 3-megapixel camera will suffice. A 4-megapixel camera will produce great 5"x7" prints. Choose a 7-megapixels for good 8"x10" prints. A 10-megapixel camera can product poster quality prints, although most home users don't have a printer that can print that large.
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