All About Photography

Errors not surprise me that even today continue reading (and hearing) a lot of people is the resolution of a picture . For starters, there is much confusion about what we mean by this term. Well, simply refers to the total number of pixels that has the photo. For example, a 12 Mega Pixels camera generates a file of, say, 4,000 pixels x 3,000 pixels = 12,000,000 pixels. The resolution of that photo (or more precisely, the file) is 12 million pixels.

Resolution

But often you’ll hear someone who has asked you a picture (even an advertising agency!) Say that “I better with 72 points per inch . ” This information is useless. What we have to say is how many pixels you want to take the photo. For example: 1,500 pixels wide or 800 pixels high. This data perfectly defines the resolution of the file that you send. As an example, these pictures have a resolution of 900 x 600 pixels, a size suitable for the Internet.

And the dots per inch?

The question then is, what resolution do I need? Depends on what it is going to use the photographs : for viewing on the monitor or to print ? And here come into play dots per inch (also called dpi or ppi).

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