High resolution" compacts, low light don’t mix


	High resolution" compacts, low light don’t mix

treocast

2-21-2008 9:06 AM

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Compact cameras use really, really small sensors to capture images. To squeeze all those pixels onto such a small sensor, something has to give. Each pixel is like a microscopic lens, and each pixel is separated by a little wall, called a Septum. The septum is supposed to keep light from falling over from one pixel to another. But to make room for more pixels, the septums have been removed from high-resolution sensors. This causes lower contrast and digital noise (AKA grain). You may be able to make big blow-ups with your 12MP compact, but they won’t look as good as manufacturers want you to believe.
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