Translation of "f-number" into Japanese

F 値, Fナンバー, F値 are the top translations of "f-number" into Japanese.

f-number noun feminine grammar

(photography) The ratio of the focal length of a lens to its diameter; a measure of the light-gathering ability of the lens. [..]

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English-Japanese dictionary

  • F 値

    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).

  • Fナンバー

    noun

  • F値

    dimensionless quantity

  • エフナンバー

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