A wide field image of Cassiopeia and its surroundings. Unfortunately I had to pack up early as clouds rolled in.

Cassiopeia – October 14, 2007
Location: DAO, upper parking lot.
Optics: Canon EF 17-40mm f/4L USM. Used at 40mm f/4.
Camera: Canon 20Da on Kenko SkyMemo.
Exposures: 12 RAW light frames of 30 sec, ISO 800.
Process: Calibrated with dark and flat frames in ImagesPlus. Combined using MinMax Excluded. Colour balance in Photoshop. Noise reduction with Neat Image.