Some more fiddling
I worked on my Ha and Lum from my recent lagoon data set to see how deep I had gone.
The Lum shows up both dust and Ha while the Ha filter isolates the ionised hydrogen structures nicely
I have gone for a slightly dramatic contrasty look..for something different
This is 60min Ha + 120min Lum from light polluted inner Newcastle - there is extensive gas and dust around here.
Deep Lagoon - click on the image to see the more natural colour version
Mike