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what are they??

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  • what are they??

    Guys,

    I want to know: what are these shiny dots in areas with lots of noise?
    For instance when you take a picture without flash light but with high or auto ISO.

    I know these dots are part of noise but what are they? Bundles of light? Reflecting pieces of dust?

    I want to know the theory about it. Can someone explain that to me or provide me with a link?

    Greets,

    Hinkelbein
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