The first frame looks like fixed pattern noise.
I read on the PI forum about issues importing DSS files into Pixinsight for post processing. A thread on the startools forum highlighted that versions of DSS come with their own issues.
Alternatively, run your images through the PI BatchPreprocessing script and see what results you get. IMHO, BP produces superior results.
What is the mosaic pattern of your QHY, RGGB or something else?
Last edited by rcheshire; 17-08-2013 at 05:52 AM.
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