Uploaded 18-Aug-12
Taken 11-Sep-12
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Dimensions1000 x 1250
Original file size700 KB
Image typeJPEG
Color spaceUncalibrated
Date modified11-Sep-12 13:38
Cygnus in H alpha enhanced color

Cygnus in H alpha enhanced color

A great night at the RASCALS 2012 Star Party in Metchosen BC. I took light frames using a modified DSLR with and without an H alpha filter and combined them to give this result
Details
2012-08-17 under very clear skies and 18 deg C.
Modified Canon T3i camera with 35mm lens and on HEQ5 mount.
Eight 8min exposures at f/4 and ISO 3200 with a 12nm Ha filter.
Plus Eight 8min exposures at f/4 and ISO 400 without the filter.
8 darks and 4 flats were used for each set to calibrate.
Processing in Images Plus and Photoshop. Color and Ha results were then combined using Registar.