What does f-number mean?

Definitions for f-numberˈɛfˌnʌm bər

Here are all the possible meanings and translations of the word f-number.

Wiktionary

  1. f-number(Noun)

    The ratio of the focal length of a lens to its diameter; a measure of the light-gathering ability of the lens.

Freebase

  1. F-number

    In optics, the f-number of an optical system is the ratio of the lens's focal length to the diameter of the entrance pupil. It is a dimensionless number that is a quantitative measure of lens speed, and an important concept in photography.

Numerology

  1. Chaldean Numerology

    The numerical value of f-number in Chaldean Numerology is: 5

  2. Pythagorean Numerology

    The numerical value of f-number in Pythagorean Numerology is: 7

Images & Illustrations of f-number

  1. f-numberf-numberf-number

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"f-number." Definitions.net. STANDS4 LLC, 2017. Web. 22 Nov. 2017. <http://www.definitions.net/definition/f-number>.

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