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Flats for solar imaging
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16-06-2012, 03:06 PM
alocky
(Andrew lockwood)
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Join Date: Aug 2010
Location: perth australia
Posts: 1,291
I centre the scope on the brightest part of the solar disc, being careful to avoid any active regions and sunspots, then defocus enough for it to be featureless. So far this seems to eliminate dust spots, newtons rings and gradients.
Cheers,
Andrew.
alocky
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