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Old 21-06-2018, 04:14 PM
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Atmos (Colin)
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Join Date: Aug 2011
Location: Melbourne
Posts: 6,873
I’d probably go the 1600. It has a slightly wider field, lower read noise for narrowband and the pixel size of the 183 is approaching diffraction of your 80mm so the larger pixels of the 1600 and likely more forgiving.
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