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Both images above are the same photograph. The image on the left has 9 stacked images. The image on the right is a single shot of only 1 of the stacked images. As you can see the colors are more vibrant and the contrast and details are more pronounced on the left image. Both images are using the same post processing settings.

Date: March 9, 2012
Scope: 14 inch Celestron CGE 1400
Focal Length: 3910 mm; F/11
Camera: Nikon D3
ISO Setting: 1000
Duration: 4 minutes
Autoguided