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Stargazing What does binning achieve?

  1. Oct 26, 2017 #1

    sophiecentaur

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    By taking groups of 2X2 pixels, are you doing anything more than low pass filtering the resulting image from a guide camera? It strikes me that a more sophisticated filter in the processing of the full image would / could improve SNR even more than a simple 'top hat' filter. Is the reason it is popular that it can be achieved with simple 'wiring' inside the camera?
     
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  3. Oct 26, 2017 #2

    jedishrfu

    Staff: Mentor

  4. Oct 26, 2017 #3

    sophiecentaur

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    Yes. = a cheap and cheerful form of Spatial Low Pass Filtering.
     
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