f-number in English
noun
1
the ratio of the focal length of a camera lens to the diameter of the aperture being used for a particular shot (e.g., f8 , indicating that the focal length is eight times the diameter).
The f-numbers marked on a lens are only truly accurate when the lens is focused at infinity.
Use "f-number" in a sentence
Below are sample sentences containing the word "f-number" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "f-number", or refer to the context using the word "f-number" in the English Dictionary.
1. 12 Expanding of Field-of-view for small F-number millimeter wave focal plane imaging is analyzed in this paper.