f-stop

noun
\ˈef-ˌstäp \

Definition of f-stop 

: a camera lens aperture setting indicated by an f-number

First Known Use of f-stop

1946, in the meaning defined above

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Dictionary Entries near f-stop

fspc

fst

F star

f-stop

f-system

ft

FT

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Time Traveler for f-stop

The first known use of f-stop was in 1946

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