focal length Definition in the Cambridge English Dictionary

Definition of “focal length” - English Dictionary

"focal length" in British English

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focal lengthnoun [C usually singular]

uk   us   specialized
the ​distance between a ​point where ​waves of ​lightmeet and the ​centre of a lens
(Definition of focal length from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Translations of “focal length”
in Chinese (Simplified) 焦距…
in Chinese (Traditional) 焦距…
What is the pronunciation of focal length?
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