Hallingskies Posted February 19, 2021 Share Posted February 19, 2021 Just tried some calibration frames with my under-used SX694. The master dark appear to show a dead column and faint diagonal banding. The flats show slightly uneven illumination at the top edge, though I think this might be a shadow of the OAG. Do these seem "normal" or workable for imaging purposes? I must admit I am rather lazy and don't normally use darks or flats, preferring to use a hot pixel filter and a clean optical path instead (though I do have to use flats with RGB - I can usually get away without them in narrowband for some reason). Any advice or comment welcome... Quote Link to comment Share on other sites More sharing options...
Wyvern Posted February 19, 2021 Share Posted February 19, 2021 The flats certainly look ok and the darks seem to be doing their job but the only way to see is to try and process an image ans see what pops out. Quote Link to comment Share on other sites More sharing options...
Gina Posted February 24, 2021 Share Posted February 24, 2021 I agree with that. Quote Link to comment Share on other sites More sharing options...
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