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Hi Petr,
No problem, glad it helps you. As you can see, the raw subframe its not very pretty, but it represents the average subframe that i captured. Some were better, some were worse.
The quality of the final outcome is determined by the quality of the raw subframes of course, so the better the input, the better the output. I usually prefer to take many subframes and combine them in order to avoid saturating the pixels to their full-well limit and therefore losing the colour data (essentially, if a pixel is saturated, it will be seen as white on the final image instead of its actual colour). Also, if any mistracking occurs during a subframe, then i only throw it away and use the rest.
Obtaining high quality data and careful processing the images are the 2 keys to achieving a good image, and of course both take time. In fact, sometimes, processing will take much longer than it took to capture the data in the first place, so be persistent!
Cheers
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