| |
When a CCD sensor is used, the quality of the output signal is not only influenced by the charge produced by incident light, but also by parasitic currents due to e.g. warming. These currents are also known as Dark Noise. The Signal-to-Noise Ratio of the sensor is obtained from the strength of the output signal in relation to the dark noise. A high signal-to-noise ratio represents low interference by dark noise and manifests itself in clear, high-contrast images.
continue with Useful brightness range | |
|