[ef-nuhm-ber] /ˈɛfˌnʌm bər/
noun, Optics, Photography.
a number corresponding to the ratio of the focal length to the diameter of a lens system, especially a camera lens. In f /1.4, 1.4 is the f-number and signifies that the focal length of the lens is 1.4 times as great as the diameter. /, f/, f, f:
(photog) the numerical value of the relative aperture. If the relative aperture is f8, 8 is the f-number and indicates that the focal length of the lens is 8 times the size of the lens aperture See also T-number
[foh; for 2 also Italian faw] /foʊ; for 2 also Italian fɔ/ noun 1. Chinese. (def 1). 2. Dario [dah-ryaw] /ˈdɑ ryɔ/ (Show IPA), born 1926, Italian playwright and theater director: Nobel Prize 1997. 1. . 1. field officer. 2. foreign office. 3. Military. forward observer. abbreviation 1. Faeroe Islands /fəʊ/ noun 1. Dario (ˈdærɪəʊ). […]
1. field officer. 2. foreign office. 3. Military. forward observer.
full operational assessment
chat fuck off and die. (1998-01-18) 1. fall over and die 2. fuck off and die