A great night at the RASCALS 2012 Star Party in Metchosen BC. I wanted to see how deep I could go in capturing H alpha light with a DSLR and a clear night and dark sky certainly helped.
Details
2012-08-17 under very clear skies and 18 deg C.
Modified Canon T3i camera with 35mm lens and 12nm Ha filter on HEQ5 mount.
Eight 8min exposures at f/4 and ISO 3200 with 8 darks and 4 flats to match.
Processing in Images Plus and Photoshop.