An interesting article by Paul Dymond on how to choose what aperture to take photos with. Not much info in there for the experienced tog, but beginners might get something from it.
Have Camera Will Travel: How do you pick the right depth of field?.
A good guide for people new to photography.
Exposure, Aperture and Shutter Speed.
Exposure is a combination of two fundamental camera settings – aperture diameter and shutter speed. Many combinations will give the right exposure, but each will have differences is depth of field, motion blur, and so on. This guide will teach you all you need to know so that you can get the right exposure and the right artisitic effect every time.
via Amateur Snapper | Exposure, Aperture and Shutter Speed Explained.
How about some background into some of those terms we all use. I expect most photogs will know all about aperture, but for some of the people new to photography, it might help them to understand what all those f numbers mean.
Aperture
In optics, an aperture is a hole or an opening through which light travels.
via Aperture – Wikipedia, the free encyclopedia.
Aperture mechanism of Canon 50mm f/1.8 II lens
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