Pelican Nebula

[MikeCM]

Managed 10 x 600s in H-alpha after Summer break up in the North here. Quite happy with the result as I have never managed 10 min subs before and this is only the 2nd time I have used my H-alpha filter. My gripe is that I am having a great deal of difficulty stopping dark halos around the stars during processing after stretching. This is despite trying a star mask. I would be grateful for any pointers.

[newbie alert]

Better off asking in the deep sky imaging section down the bottom..im sure someone knows the answer..

Great image thou!!