[ef-sis-tuh m] /ˈɛfˌsɪs təm/

noun, Optics, Photography.
a system that indicates the relative aperture of a camera lens based on the f-number.


Read Also:

  • Ft

    1. Insurance. fire and theft. 1. forint; forints. noun 1. a unit of area measurement equal to a square measuring one foot on each side; 0.0929 square meters. 2 , sq. ft. Abbreviation: ft. abbreviation 1. foot or feet 2. fortification abbreviation 1. Fort abbreviation (in Britain) 1. Financial Times ft. or ft abbr. ft […]

  • Fta

    sentence Fuck the Army; also, fuck them all (1950s+ Army) 1. fun, travel, and adventure 2. Future Teachers of America

  • Fta-abs

    fluorescent treponemal antibody absorption

  • Frumpy

    [fruhm-pee] /ˈfrʌm pi/ adjective, frumpier, frumpiest. 1. . /ˈfrʌmpɪ/ adjective 1. (of a woman, clothes, etc) dowdy, drab, or unattractive adj. 1746, “cross-tempered,” from frump (n.) “bad temper” (1660s) and an earlier verb meaning “to mock, browbeat” (1550s), of obscure origin, perhaps imitative of a sneer or derisive snort. Sense of “sour-looking, unfashionable” is from […]

Disclaimer: F-system definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.