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F-stop Last modified: Thursday, February 01, 2007
In digital photography and digital video recording, F-stop refers to the international standard sequence of numbers that express relative aperture. F-stop is the "lens focal length" divided by the "effective aperture diameter." The smaller the F- number, the greater the amount of light that passes through the lens. Each change of F-stop halves or doubles the image brightness as you step up or down.
Digital Content Producer Magazine Film & video production in a multi-platform world.	Related Categories Digital Cameras Digital Photography Measurement Video Related Terms aperture depth of field device digital digital camera digital photography digital video digital zoom focal length focus spread zoom zoom lens zoomed video