Translation of f-number in Spanish:


número f, n.

Pronunciation /ˈɛf ˌnəmbər/


  • 1

    número f masculine
    • The f-numbers marked on a lens are only truly accurate when the lens is focused at infinity.
    • All these f-numbers, focal lengths, film speeds and apertures are actually really simple to get to grips with once you understand how they relate to each other and to the finished picture.
    • The higher f-numbers mean the diameter of the lens can be smaller, so the lens, using only 20% to 25% as much material, will cost less and weigh less.
    • So if you want to have that window frame, the couple, and the envelope all in focus, you need a narrow aperture, and so a large f-number, such as f22.
    • The configuration offers the advantage of high image quality, low distortion, and low f-number, making it ideal for spectral imaging.