Image Details: M57 by Ken Crawford
RCOS 20" Truss @ F8.3
SBIG ST10XME / AO7 RCOS Reducer Mod @ F6.3
AstroDon - 2" LRGB Filters
90 minutes Unbinned Lum
RGB = 25 minutes each binned 2x2
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Image Details: M57 by Ken Crawford RCOS 20" Truss @ F8.3 SBIG ST10XME / AO7 RCOS Reducer Mod @ F6.3 AstroDon - 2" LRGB Filters 90 minutes Unbinned Lum RGB = 25 minutes each binned 2x2
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