aperture

(redirected from f-stop)
Also found in: Dictionary, Thesaurus, Medical, Financial, Encyclopedia, Wikipedia.
References in periodicals archive ?
No, what you need is the latest digital colour cameras with an F-stop of 0.
I feel it has been a needed contribution in a new wave of transsexual activism, very much a part of a burgeoning movement that began about the time I was figuring out what an f-stop was.
A magnetic code on each negative enables APS processing equipment to take into account such information as the f-stop and shutter speed used for individual prints.
A lower f-stop number (wider aperture) will produce a wider line.
For years, desk editors who didn't need to know an f-stop from a stopbath have been making decisions on pictures.
You can force an aperture-preferred camera to "pick" a fast shutter by using a moderate or open f-stop.
When it comes to aperture, the lower the f-stop number, the sharper a picture will appear.
The f-stop is a measurement of the diameter of the aperture, expressed as a fraction (f/1.
While shutter speeds are simple fractions of a second, the f-stop is the focal length of the lens divided by the diameter of its opening (f/stop = A/FL).
As a general rule of thumb, the lower the f-stop, the blurrier the background, and the effect is accentuated by getting closer to your subject.
The biggest advantage on set is that the light does not have to be adapted when switching lenses because they all have the same F-Stop.