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I ran a test on 40 x 600 sec uncalibrated Luminance images (NGC 7424 @ 2760mm focal length).
CCDStack: registered with CCDIS/High Precision, interpolated with Lanczos 36, followed by a Mean stack, no normalization, no rejection.
PI: Star alignment with default interpolation (Lanczos 3) followed by integration with no normalization or rejection.
Maxim: Auto star match registration followed by Average combine.
CCDInspector FWHM for integrated result:
PI: 2.71 arcsec
CCDStack: 2.72 arcsec
Maxim: 2.86 arcsec
Looks like a tie between CCDStack and PixInsight with Maxim in second place.
I also tried to do a registration with RegiStar but couldn't get it to work. I have used it successfully before so I'll try again later and see if I can figure out what I'm doing wrong.
Cheers,
Rick.
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