RE: High speed Tesla spark photographs

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Daniel McCauley" <dhmccauley@xxxxxxxxxxxxxxxxxxxxxxxxxx>



Terry,

A "dark" frame will only remove non-random noise such as hot pixels.  To
remove random noise generated by the sensor itself, you basically would need
to take multiple exposures of an identical object (such as stars for
example) and then average those frames to remove random noise.  Of course,
our arc is not a constant image, so you cannot do that.

Dan