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I took some lovely shots of the Orion Nebula last night. The individual shots are lovely but when I go stack them, all the colour disappears. I took around 40 at 30s ISO 800, same darks. Why would this be. I did flats as well and I have tried stretching them in GIMP. I would have expected the picture to have more detail after processing. This is the processed image.

post-44244-0-55324100-1444824372_thumb.j

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Use the Highlight slider in DSS to taper the histogram curve in DSS.

Did you your CR2 (RAW) files? If so try converting all to tiff n then stack. Somehow the results r predictable with tiff ;-)

Sent from my iPhone using Tapatalk

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