Gamma Cygni complex
Optic: Canon 400 mm f:5.6 L.
Camera: Modified Baader Canon 350D (Halpha pass filter - see
here) at ISO800. Mount: Takahashi EM200.
Exposure: 32 minutes (16 x
2 minutes). Processing: Iris
software. Observatory: Pic du Midi (altitude 2877 meters, french Pyrénées).
Date: July 27, 2006.