City lights, neighbours outside lights, limited number of clear nights and astrophotography from your backyard, all mean having to battle not only light pollution but time and opportunity to engage in our hobby. So if there’s technology that can make things a little easier than why not give it a try!
Narrowband and light pollution suppression (LPS) filters are the goto for many astronomy enthusiasts be it visual or imagers. With light pollution increasing each year and our inability to escape it for one reason or another means we have to adapt and utilize things like special filters.
What is the difference though between not using one of these filters and using one? That’s what I wanted to visualize so I did an experiment. It invlovled imaging the same deepsky object twice, using the same telescope and camera, for the same amount of time. But one image uses no narrowband/light pollution filter while the other one does. The difference is quite stunning!
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