Peter,
It's great that you arrived at a terrific result. I read through the link to your website and test results and was surprised that your final use of CCDI was based on a ten min exposure. Seems to me that there would be too many variables in such an exposure...tracking, atmosphere, etc. When I use CCDI I take ten x 10 sec exposures and let CCDI average them. I find these results to be quite repeatable. Anyway, probably you do this and I missed it somewhere.
Peter
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