Reducing pixel size can increase a digital camera's performance. However, there are tradeoffs that need to be considered when going that route.Albert Theuwissen, DALSA Professional ImagingIn the search for ever-higher pixel counts for the digital still camera, it is clear that, if chip size remains constant, then “more pixels” means “smaller pixels.” The incentive in keeping the silicon area of the sensor as small as possible is lower chip cost. A larger chip also requires a larger and more costly lens, extra space on a printed circuit board and a larger camera body. Smaller pixels are the key to producing higher resolution sensors on the same silicon area — or to reducing chip size without affecting resolution. 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