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Encyclopedia > Anamorphic projection

Anamorphic projection is a modification of the aspect ratio of an image by optical distortion which stretches or compresses the image in one dimension but not the other.


Anamorphic projection in widescreen cinema uses special anamorphic lenses which compress the image during filming to fit the 4:3 aspect ratio of 35mm film. An equal but opposite anamorphic lens on the cinema projector stretches the image back to the full widescreen format.


Some widescreen video monitors and DVD players are also capable of stretching an image to match the format of the screen.


In virtual reality, anamorphic projection techniques have also been used but calculations to transform the image are done by computer.


Similar forms of optical distortion have been used for abstract or artistic purposes. Where image elements are intended to appear in their stretched or compressed form in the final picture, this use of technique is referred to as anamorphic art.


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  Results from FactBites:
 
Anamorphic projection - Wikipedia, the free encyclopedia (201 words)
Anamorphic projection is a modification of the aspect ratio of an image by optical distortion which stretches or compresses the image in one dimension but not the other.
Anamorphic projection in widescreen cinema uses special anamorphic lenses which compress the image during filming to fit the 3:2 aspect ratio of 35 mm film.
In virtual reality, anamorphic projection techniques have also been used but calculations to transform the image are done by computer.
Anamorphic widescreen - Wikipedia, the free encyclopedia (2303 words)
Anamorphic widescreen is a cinematography and photography technique for capturing a widescreen picture on standard 35mm film, or other visual recording media with a non-widescreen native aspect ratio.
Anamorphic widescreen was attractive to studios because of its similar high aspect ratio (Cinerama was 2.59) without the disadvantages that came with the Cinerama format's simultaneous reels.
Although many films projected anamorphically have been shot using anamorphic lenses, there are often aesthetic and technical reasons which make shooting with spherical lenses preferable.
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