Describes the makeup, build, and technology of the sensor that is in the camera. An Image Sensor is a device that converts an optical image to an electric signal. It is used mostly in digital cameras and other imaging devices. It is a set of charge-coupled devices (CCD) or CMOS sensors such as active-pixel sensors.
Minimum illumination indicates the minimum amount of light required to see a ‘useful’ image generated by a camera. It is measured with a light meter and the specification is expressed in lux. When comparing minimum illumination specifications, it is important to know the conditions under which measurements were made, because the specifications vary with parameters such as video levels, shutter speed, gain, and F-number.