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back focus

back fo·cus
B b

Transcription

    • US Pronunciation
    • US IPA
    • [bak foh-kuh s]
    • /bæk ˈfoʊ kəs/
    • US Pronunciation
    • US IPA
    • [bak foh-kuh s]
    • /bæk ˈfoʊ kəs/

Definition of back focus words

  • noun back focus the distance between the back surface of a lens and the focal plane when the lens is focused at infinity. 1

Information block about the term

Origin of back focus

First appearance:

before 1895
One of the 18% newest English words
First recorded in 1895-1900

Historical Comparancy

Parts of speech for Back focus

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation

back focus popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 32% of English native speakers know the meaning and use word.
According to our data about 74% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.

back focus usage trend in Literature

This diagram is provided by Google Ngram Viewer

See also

Matching words

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