Sharpless 2-101, the Tulip Nebula, in Cygnus.
DSI Pro III, Astrodon 3nm Ha and SII filters, Celestron C80ED refractor.

Ha: 24 x 15 minutes
SII: 7 x 15 minutes

Bicolor mapping method, using Red = Ha, Green = SII, and synthesized Blue = Ha x SII.
Color balanced for white stars at the high end and black background at the low end.
Ha also used as luminance.