I have been looking all over the internet to find an answer to the question below, but I get contradictory results. Could someone please explain to me the following:
In order to reduce observable noise in a picture, one could use pixel binning. I am told on other sites (and contradicted as many times) that this is merely lowering the resolution of the picture. So, for example, when one shoots a 21MP picture and then later on lowers it to about 10MP, the amount of observable noise should drastically improve.
My first question: is this correct?
My second question: if I immediately shoot in sRAW and have a 10MP output of the 21MP sensor, is this also considered pixel binning? Does this reduce the noise as much as in the method above?
Thank you very much, I am really looking forward to your answers!