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Our online glossary is here to help you make sense of the terminology used in the cell phone industry. It covers mobile technologies, such as 3G and 4G, and even includes a bit of information on smartphone operating systems and the companies that make the cell phones and other mobile technology devices we all use.

What is "depth of field"?

Depth of field refers to the range of distances before and beyond the lens' focal point that are still sharp. A wide angle lens offers more depth of field than does a telephoto lens when focused at the same distance. Small lens apertures also offer more depth of field than do larger ones.

See Also: focal point, wide angle, aperture

Referred to by: aperture

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