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   Anglais
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nom | adjective | phrases
aperture ['æpəʧə] n
appar. trou du collimateur; trou du diaphragme
botan. pore f
constr. jour m; percée f
haut.énerg. ouverture f
micr. ouverture f (In photography, the diameter of the aperture expressed in terms of the focal length of the camera lens. The greater the f-number, the less light reaches the film and the more in focus the objects in the foreground and the background will be. For example, with an f-number = 16 the objects in the far background will be in focus. Whereas, with an f-number = 2 the background will be blurry (while foreground objects are in focus)); ouverture f (In photography, the diameter of the aperture expressed in terms of the focal length of the camera lens. The greater the f-number, the less light reaches the film and the more in focus the objects in the foreground and the background will be. For example, with an f-number = 16 the objects in the far background will be in focus. Whereas, with an f-number = 2 the background will be blurry (while foreground objects are in focus))
ordin. ouverture aperture
paléont. bouche f; fente buccal; ouverture buccale; ouverture des cloisons méridiennes
phonol. aperture f
struct. encoche f; logement m; mortaise f
apertures n
botan. apertures f
aperture ['æpəʧə] adj.
comm., électr. diamètre du champ nodal; diamètre du spot
constr. baie
loi cr., loi int. oeilleton
médic. orifice; trou
sciences., électr. superficie d'entrée du capteur; surface d'entrée du capteur; embouchure; dimension d'ouverture
transp. lumière
transp., génie m. diaphragme
transp., naut. ouverture de passage
 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: 373 phrases, 49 sujets
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