Translation of "focal length" into French

distance focale, focale, focalisation are the top translations of "focal length" into French.

focal length noun grammar

(optics) The distance at which something (e.g. a lens, mirror etc.) is in focus; in air it is the distance along the optical axis from a "principal plane" of the lens to one of the lens's focal points. [..]

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English-French dictionary

  • distance focale

    noun feminine

    distance [..]

    Lens, 200 mm nominal focal length and 30 mm nominal diameter

    Lentille d'une distance focale nominale de 200 mm et d'un diamètre nominal de 30 mm

  • focale

    noun feminine

    The rear sight includes optical element having a first focal length and a second focal length.

    Le viseur arrière comprend un élément optique ayant une première longueur focale et une seconde longueur focale.

  • focalisation

    noun

  • Less frequent translations

    • longuer focale
    • Distance focale
    • distances focales
    • longueur focale

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Automatic translations of "focal length" into French

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