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HA flat field times?
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27-04-2013, 10:00 PM
Tandum
(Robin)
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Join Date: Apr 2008
Location: Wynnum West, Brisbane.
Posts: 4,161
I guess it depends on the LED's. I seem to remember doing 20sec exposures last time I did Ha flats but I'm using Baader filters an I think they are about 12nm not 5. Try combining without flats.
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