Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A camera lens aperture setting that corresponds to an f-number.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun photography Any of the discrete steps or stopping points for adjusting the aperture of a lens, either marked on a ring on the lens and adjusted by rotating that ring or marked in the display of a digital camera and adjusted by buttons or touch-sensitive controls.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[f(ocal length) + stop.]

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Examples

Comments

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  • The "F" refers to focal length.

    March 26, 2011