A good guide about the advantages of image stacking for DSLR astrophotography
The benefits of adding more subs to your stack
Adding multiple exposures to create a single image is one of the key elements of doing astrophotography. It enables us to get rid of bad pixels, satellite trails, noise while increasing signal to increase the overall signal-to-noise ratio. It truly is one of the most important aspects of astrophotography. But stacking remains a bit of a mystery to most people and they will keep having questions like ‘How many frames should I stack?’, ‘Am I …
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