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aperture

['æpəʧə] n
commun., el. tamaño del punto
nat.sc., el. superficie de entrada de un colector
apertures n
astr. aperturas f
aperture of an antenna ['æpəʧə] n
antenn. apertura radiante de una antena
aperture ['æpəʧə] adj.
gen. abertura
crim.law., law, int. law. mirilla del visor
med. apertura; foramen; orificio
nat.sc., el. área de apertura del colector
transp., mech.eng. diagrama
 English thesaurus
aperture ['æpəʧə] abbr.
abbr., oil ap; aper
cinema 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
: 204 phrases in 36 subjects
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