Aspect ratio (image)

The aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, width:height. Common aspect ratios are 1.85:1 and 2.40:1 in cinematography, 4:3 and 16:9 in television, and 3:2 in still photography.

This article is about aspect ratio of still images, films, and digital imagery. For display aspect ratio, see display aspect ratio.
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