EN aperture; aperture value; f-number; focal ratio
LV f numurs; fokusa proporcijas
RU диафрагма
DE Blendenzahl; Öffnungsverhältnis
FR f : chiffre; ouverture; valeur d'ouverture
Definīcija: 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).
Microsoft Terminology 2023. Entry from the Microsoft Language Portal.
© 2023 Microsoft Corporation. All rights reserved.
