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What is an aspect ratio?

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2009-01-06 01:15:33
2009-01-06 01:15:33

An aspect ratio is the width by height dimensions (the ratio) of a display screen. It's often used in terms of a movie screen, TV, or computer monitor. The standard aspect ratio for television is 4:3 (aka Academy Standard or 1.33:1). In other words, if the width of the screen is four inches, the height would be three inches. If the width is eight inches, the height would be six inches. If the width is 16 inches, the height would be 12. Wide-screen television broadcasts and DVDs are 16:9 (aka 1.78:1). Modern movies are either 1.85:1 (aka Widescreen, Academy Flat or Academy for short) or 2.35:1 (aka Panavision, Cinemascope or just Scope). Technically, Panavision is 2.39:1, but is still commonly referred to as 2.35:1. There are also quite a few aspects that have been used by the movie industry, but are no longer used.

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That is a 16:9 aspect ratio.

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