American Heritage Dictionary
(2)
Century Dictionary
GNU Webster's 1913
WordNet
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Street scenes, thick and dark and shot with the f-stop way down low, alternate with shots of skyscrapers and the negative space between them.— GreenCine Daily
All you missed is that each f-stop halves or doubles the amount of light reaching the focal plane (film or sensor) depending on which way you go. that will come in handy for the differential equations later— xml's Blinklist.com
High f-stop or low for high DoF - or is that low DoF?— xml's Blinklist.com
And it is f-stop not shutterspeed that's the wrong way round - isn't it?— xml's Blinklist.com
When it's dark, your pupils dilate large to let in more light, but it is difficult to focus as well when your pupils are dilated, much like the largest size (smallest number) f-stop has the shallowest depth of field in focus.— xml's Blinklist.com

American Heritage Dictionary (1)
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