This is my SHO pallet version of the Seagull Nebula (IC2177). Shot with an ASI1600MM-C camera through a TS Photoline 115mm f7 APO (reduced to f5.5 here). Image consists of: 23 x 300" Ha, 21 x 300" Oiii, and 20 x 300" Sii subs. Processed in DSS and Photoshop CC.
Astrobin details page:
http://www.astrobin.com/270373/
Full Screen view:
http://www.astrobin.com/full/270373/0/
Thumbnail attached here as usual, but suffers from downsizing obviously.