How-To
Tuesday, April 3, 2007
Creative Exposure Modes
By Rick Sammon
Aperture-Priority Mode
When precisely controlling depth of field (the area that’s in focus in front of and behind a subject) is important to the photograph, use the Aperture-Priority mode.
The beauty of this mode is that even if the light level changes, the ƒ-stop stays set, because the camera automatically selects the appropriate shutter speed for the exposure that you’ve chosen.
Wide ƒ-Stop
Here we see how choosing a wide ƒ-stop (ƒ/2.8) offers shallow depth of field. The background in this portrait of my friend Chandler is very blurred.
Small ƒ-Stop Here’s how choosing a small ƒ-stop (ƒ/11) offers greater depth of field. In this picture, which I took in Bhutan, both the young monk and the dzong (temple/fortress) in the background are in focus.
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