Didge Posted November 11, 2022 Share Posted November 11, 2022 Hi, I use AP a lot for astrophotography stacking. The 'Select Best Light Frames' seems to work most of the time, but fails horribly at other times. This extract from the User Guide ... Quality is determined by the presence of artefacts such as star trails and periodic errors. is not very enlightening. How does it work - what are the thresholds - how does it distinguish between star trails and satellites for example ? More importantly, star trails or periodic errors aren't usually the important thing - particularly with modern guided mounts with low PE. Much more important is FWHM. I don't always want to chuck out x% of my frames, just because other frames are better. What I what to do is select all frames with a FWHM < 3" or some other number, depending on the seeing conditions when the images were captured. Can you add a feature for the user to select frames based on FWHM - similar to the way SiriL does ? That would be very nice Gary Quote Link to comment Share on other sites More sharing options...
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