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   Anglais ⇄
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adjective | nom | phrases
aperture ['æpəʧə] adj.
comm., électr. tamanho do ponto
médic. abertura; orifício
sciences., électr. abertura do coletor ; área de abertura do coletor
transp., génie m. diafragma
 Anglais glossaire
aperture ['æpəʧə] abbr.
abrév., pétr. ap; aper
ciném. A measure of the width of the opening allowing light to enter a camera. The apparent diameter of a lens viewed from the position of the object against a diffusely illuminated background is called the "effect aperture". The ratio of focal length of a lens to its "effective aperture" for an object located at infinity is called the "relative aperture", or "f/number". Larger apertures allow more light to enter a camera, hence darker scenes can be recorded. Conversely, smaller apertures allow less light to enter, but have the advantage of creating a large depth of field. See also shutter speed.
aperture: 160 phrases, 25 sujets
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