How to Choose a Lens Aperture (F Stop) in 10 Steps
f/ numbers are a ratio of the diameter of your aperture compared to your lens. Hence, a larger number is a smaller aperture.
How to choose lens aperture
How to Choose a Lens Aperture (F Stop): 10 Steps (with Pictures)
Choose a lens aperture (F-Stop)
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How to Use Your Camera's Aperture Priority Mode -- via wikiHow.com
How to Use Lens Aperture to Demonstrate Importance and Tell Stories by Cee Dhinjan @ http://www.picturecorrect.com/tips/how-to-use-lens-aperture-to-demonstrate-importance-and-tell-stories/. Photo: "like lovers do” captured by David Hobcote.