Definitions and translations for "f number"

Definition of f number

Pronunciation
Noun
1. The ratio of the focal length to the diameter of a (camera) lens system.
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English - English - f number

Pronunciation
focal distance divided by the effective diameter of the camera lens aperture (Photography)

English - Spanish - f number

Pronunciation
número de foco (la relación entre la distancia del foco de la cámara fotográfica y el perímetro de abertura del reductor)

English - French - f number

Pronunciation
échelle d'ouverture (rapport entre la distance d'ouverture de l'objectif d'un appareil et la possibilité de réduction)

English - German - f number

Pronunciation
F-Zahl (Verhältnis zwischen Abstand eines Gegenstandes von der Fotolinse und der Blendenöffnung)

English - Italian - f number

Pronunciation
numero f (il rapporto fra la distanza del fuoco della lente della macchina fotografica e il diametro di apertura del zoom)

English - Portuguese - f number

Pronunciation
centro relativo (a relação entre a distância do centro da lente da câmara fotográfica e o diâmetro da abertura do foco)

English - Turkish - f number

Pronunciation
i. oransal açıklık [fot.]

English - Dutch - f number

Pronunciation
f-getal (aanduiding van lichtsterkte van lens)

English - Chinese - f number

Pronunciation
焦距比数

English - Chinese - f number

Pronunciation
焦距比數

English - Japanese - f number

Pronunciation
Fナンバー; F数
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