Noun
f stop (plural f stops)
Alternative spelling of f-stop
f-stop (plural f-stops)
(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.
f-stop
It also has some drawbacks—the CCD sensor means that high ISO image quality isn't there, and those more sensitive settings will be used in middling light due to the modest f-stop. Source: Internet
But even if you don't understand exactly how and why it works (you don't have to understand it to use it today), just remember that setting your f-stop as small as possible will give you the shallowest depth of field your camera can manage. Source: Internet
If you’re using lenses set to the same t-stop, it will, whereas if you’re using lenses set to the same f-stop, it might not. Source: Internet
Something photographers don’t agree on is exactly which f-stop to use, but everybody pretty much agrees you need to use an f-stop that keeps a lot of your image in focus. Source: Internet