stacked exposure from Happy Jack, Az
Instrument: 17-40mm f/4 L at 17mm
Platform: Homemade GEM
Camera: Canon 10D @ ISO800
CCD Autoguider: ST4
Location: Happy Jack, Arizona
Elevation: 6800 ft.
Sky: Seeing 8/10, Transparency 10/10
Outside Temperature: 5 C
Processing: Photoshop, PixInsight Pro.
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The stock 10D, unmodified is truly
a fun camera. Despite its nearly total lack of red sensitivity,
it is possible to get decent shots of the sky at dark sky sites.
I am also getting much better at processing these images, and
getting a clearer understanding of exactly what the 10D does
during long exposures. This image, is a stack of two 8 minute
frames taken piggy back on my Schmidt camera during a long nights
run last week. The field size is huge with the 17mm L lens! Orion
can be seen in the lower right corner, and Auriga straight up
above it, with brilliant Capella at the top. Canis Major and
Minor are on the left side of the image.
Processing: Images stacked
and aligned, and background flattened in PixInsight. Color correction
in Photoshop. The hydrogen nebulosities normally come out a magenta
color with this camera. They were skewed in PS to the proper