Pixel Count (Resolution)

Differences in cameras is responsible for differences in pixel count. With resolution ranging from 512 x 512 to 1024 x 1024, not all cameras are equal. The pixel count of a CCD camera in an OEC 9800, for example, is 980 x 980, 768 x 494 in a Quantum or 1024 x 1024 in a Pulsera or Ziehm Vision.