powerlord Posted August 13, 2022 Share Posted August 13, 2022 Well, got the second panel last night, but as you can see I'm still getting black bits in the center of the frames. I was thinking it could be dew even though I've got the dew heater on, but I'd expect that to be the opposite.. maybe I had dew when I took the flats ? but it's not obvious in them hmm.. well that's the best I can do - ok if you can ignore the two circles. 2 Link to comment Share on other sites More sharing options...
Craney Posted August 13, 2022 Share Posted August 13, 2022 You have got the Shark jumping through hoops !! This is such a difficult target. My attempts look like a sea-slug. Yes, dew looks likely with such central circularity. 1 Link to comment Share on other sites More sharing options...
simmo39 Posted August 13, 2022 Share Posted August 13, 2022 Yep thats jaws! I used to have the same problem when I used my ASI 1600mm. I never got to the bottom of the problem as it was intermittent. Link to comment Share on other sites More sharing options...
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