f-number

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English

English Wikipedia has an article on:

f-number

Noun

f-number (plural f-numbers)

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

Translations

ratio of the focal length of a lens to its diameter

Finnish: aukkosuhde, aukko (fi)
Hungarian: fényerő (hu)
(deprecated template usage) {{trans-mid}}
Maori: waepuare

See also

f-stop

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