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F NUMBER

Pronunciation (US):

Dictionary entry overview: What does f number mean?

• F NUMBER (noun)
The noun F NUMBER has 1 sense:

1. the ratio of the focal length to the diameter of a (camera) lens system

Familiarity information: F NUMBER used as a noun is very rare.

Dictionary entry details

• F NUMBER (noun)

Sense 1

f number ^{[BACK TO TOP]}

Meaning:

The ratio of the focal length to the diameter of a (camera) lens system

Classified under:

Nouns denoting relations between people or things or ideas

Synonyms:

f number; focal ratio; stop number; speed

Hypernyms ("f number" is a kind of...):

ratio (the relative magnitudes of two quantities (usually expressed as a quotient))

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