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And other process where the Halfa information was added in Tiff 32 bits. The first, above, it was done in Tiff 16 bits.
Some process in Photoshop CS3 was used to enhance details. But was not necessary to use any noise filter.
GSO 305 mm - HaRGB - Canon T3 - RGB: ISO 800, skyglow filter 15 x 240 sec - Ha: ISO 1600 - 7 x 240 sec
note: I lost a little of the nebula
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