| English Dictionary |
F NUMBER
| Pronunciation (US): |  | (GB): | |
| IPA (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
Sense 1
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; speed; stop number
Hypernyms ("f number" is a kind of...):
ratio (the relative magnitudes of two quantities (usually expressed as a quotient))
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"From whence comes the word, comes the soul." (Albanian proverb)
"When a tree falls, the monkeys scatter." (Chinese proverb)
"When in need, you shall know a friend." (Czech proverb)