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Image Capture

  • • CCD, CMOS, or NMOS sensor arrays with a color
  • filter array or Foveon “stacked” sensors
  • • Analog converted to 8-14 bit digital values
  • • Each light-sensitive position is called a pixel
  • (~3MP is comparable to 35mm)
  • Grain is mostly noise, also sensor pixel count
  • • Sensor noise is generally less for: bigger pixels,
  • colder temperatures, & faster shutter speeds