Sadr, the central star of the constellation Cygnus (The Swan), is surrounded by extensive diffuse emission and dark nebulae, many of which have separate designations. Captured wonderfully in this wider view, one begins to get a feel for the true extent of the nebulosity.  The brighter regions in the left portion of the image are known together as the Butterfly Nebula or Gamma Cygni Nebula, and has the designation IC 1318. This is an image from a full colour camera, the SIGMA fp L, with the colour being dominated by the red hydrogen-alpha emissions.

TS94EDPH (with Reducer)
10Micron GM1000 HPS
SIGMA fp L (colour)
Optolong L-Extreme filter
ca. 2 hrs, ISO 1600, F4.4, 414mm 

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