The North America and Pelican Nebulas in Cygnus.

The image below is made with a SBIG STL-4020 and a Canon EF L 300mm lens, mounted on a Astrophysics Mach 1GTO mount.

Exposures were 5x15m H-Alfa and 1x15 for RGB, Astronomik filters. The image below is 50% size, for the full size click here.