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Chapter 6. Improving Image Quality While... > Controlling exposure priority

Controlling exposure priority

Most digital cameras have some level of manual control over exposure (some more than others). The control is usually over which mechanism of the exposure process gets priority—the shutter or the lens aperture. In either case, a balance between the two must exist to get a proper exposure—at least, the exposure you're trying to achieve. While these controls work together, they can produce different images. Are you trying to create a wide depth of field? Do you want to freeze sharp, focused images of high-speed action? Understanding how to use your digital camera's priority modes is the key to getting professional results in a variety of shooting situations.

Back to basics

To understand aperture and shutter priority, it's best to start with some of the fundamentals of photography. Without an understanding of how these crucial processes function, it would be next to impossible to make intelligent choices on how to set them. In addition, comparing digital and traditional photography isn't always apples to apples, so being sensitive to the differences is crucial to getting consistent images.


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