Image stacking demystified
Almost as soon as you start capturing the night sky with your camera, you’ll encounter the mysterious term stacking. “How many images did you stack?” “How long are the subs in that stack?”
I remember having my own misconceptions about the subject of stacking when I got started, and I still meet experienced astrophotographers who are fuzzy on the details of how the technique works. But stacking is actually simple to understand once you have a solid grasp of the problem you’re trying to solve. It’s really all a matter of signal and noise.
A light rain
Photography is all about light — the term literally means ‘writing with light’. Plentiful light produces high-quality photos, while low light levels yield. It’s important to bear in mind that this noise is not something that gets so much as something that’s .
