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Aperture and Depth of Field

Aperture and Depth of Field
Depth of Field Depth of Field (DOF) is the front-to-back zone of a photograph in which the image is razor sharp. As soon as an object (person, thing) falls out of this range, it begins to lose focus at an accelerating degree the farther out of the zone it falls; e.g. closer to the lens or deeper into the background. With any DOF zone, there is a Point of Optimum focus in which the object is most sharp. There are two ways to describe the qualities of depth of field - shallow DOF or deep DOF. Shallow is when the included focus range is very narrow, a few inches to several feet. Aperture The aperture is the opening at the rear of the lens that determines how much light travels through the lens and falls on the image sensor. Small vs Large Aperture Manipulating the aperture is the easiest and most often utilized means to adjust Depth of Field. Aperture Range Distance from the Lens Conclusion You might also like:

http://www.exposureguide.com/focusing-basics.htm

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Understand Exposure in Under 10 Minutes A Post By: Annie Tao There are countless Photography books and classes that explain exposure, yet after reading or attending them, your photos may not have improved because…well, let’s be honest… some of us Right-Brainers aren’t super technical! I recently taught a small photography class to newbies. I thought hard about how I could explain exposure in the simplest way possible. I found that a parallel example of something relatable was the best way to convey the different aspects that impact exposure. I tested this theory by explaining exposure to my 8-year old daughter and then quizzed her.

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MadelineTonks - Contemporary Photography: Artist Research - Simon Norfolk Simon Norfolk Simon Norfolk was born in 1963 in Nigeria. He attended Oxford and Bristol universities and left with a degree of sociology and philosophy. Simon Norfolk " ...is studying war, and its effects on many things: the physical shape of our cities and natural environments, social memory, the psychology of societies, and more." "He is examining genocide; imperialism; the interconnectedness of war, land and military space; and how wars are being fought at the same time with supercomputers, satellites, outdated weapons and equipment, people on the ground, intercepted communications, and manipulated and manipulating media."

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