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**__Megapixels__:** noun /ˈmegəˌpiksəl/ plural of //meg·a·pix·el//


 * One million pixels, used as a measure of the resolution in digital camera
 * // computing // one million pixels:a term used to describe the degree of resolution supplied by digital cameras,scanners,etc

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Here comes a good tip and a much straightforward way and in nicely tabulated form to let you grab the idea about how the value of megapixels can affect picture quality. As shown in the table below, the most straightforward way to explain is the higher the number of megapixels, the bigger the maximum print size of the picture can achieve at certain PPI (Pixels per inch). The pixel per inch refers to density of pixels on the image, which is the higher the density, the finer the image is. The table shown below, compare between two different PPIs, which are 300 and 200 PPI. Pictures with 300 PPI are definitely having better quality than those with 200 PPI. The table shows that if you have a camera that is capable of 2 megapixels, and you can’t even make a standard 4×6 inch print at 300 PPI, unless you’re willing to reduce the picture quality down to 200 PPI, perhaps something lower than 200 PPI.


 * **# of Megapixels ** || **Max Print Size at 300 PPI**  ||  **Max Print Size at 200 PPI**  ||
 * 2 || 5.8″ x 3.8″ || 8.7″ x 5.8″ ||
 * 3 || 7.1″ x 4.7″ || 10.6″ x 7.1″ ||
 * 4 || 8.2″ x 5.4″ || 12.2″ x 8.2″ ||
 * 6 || 10.0″ x 6.7″ || 15.0″ x 10.0″ ||
 * 8 || 11.5″ x 7.7″ || 17.3″ x 11.5″ ||
 * 12 || 14.1″ x 9.4″ || 21.2″ x 14.1″ ||
 * 16 || 16.3″ x 10.9″ || 24.5″ x 16.3″ ||

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