Thread: The Sun in Ca K and Ha Dec 3
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Old 06-12-2020, 03:00 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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Gerard,
Well done!
A nice collection of images....
(For CaK I use the ED80 stopped down to 60mm - it seems to give a better more uniform bandwidth at f10)
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