"15 Low-Light High-ISO All-Star Digital Cameras"
:
"Some rules of physics remain true: The key one is
that the larger the camera?s sensor, the less digital noise. It is also still
true that more pixels on the same sized sensor will lead to greater image
degradation at higher ISOs, while fewer pixels will, counter-intuitively, lead
to improved overall image quality"
this article refers to the website http://www.dxomark.com/index.php/en/Camera-Sensor/Sensor-rankings -
A good reference point for future camera purchases.
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