DictionnaireLe forumContacts

   Anglais +
Google | Forvo | +
phrases

apertures

n
botan. apertures f
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
 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.
apertures
: 217 phrases, 41 sujets
Agriculture6
Antennes et guides d'ondes11
Appareils médicaux6
Assurance2
Astronomie2
Aviation1
Cinématographie3
Communications20
Construction14
Éclairage autre que cinéma1
Électronique29
Emballage2
Équipement automatisé1
Études culturelles1
Général2
Génie mécanique1
Industrie1
Informatique12
Loi4
Loisirs et passe-temps3
Médical12
Métallurgie1
Microscopie1
Microsoft1
Nations unies5
Ordinateurs3
Paléontologie22
Pêche industrie de la pêche2
Phonologie1
Physique des hautes énergies2
Physique nucléaire4
Planification municipale1
Rayonnement nucléaire3
Sciences de la Terre4
Sciences de la vie1
Sciences naturelles11
Sport de tir1
Technologie9
Télédétection6
Télégraphie2
Transport3