Are binning and „super-pixels” good for CCD cameras?What is noise in cameras?

Binning is the combination of two or more CCD image sensor pixels to form a new „super-pixel” prior to readout and digitizing. As a result, the generated charge carriers accumulate from the single pixels. This improves signal-to-noise-ratio (SNR), allowing exceptional quality image recording, at extremely low light levels. It also results in a reduction in the image spatial resolution.