Bottletopburly Posted July 31, 2020 Share Posted July 31, 2020 (edited) Don’t know what happened to my guiding lately but last night 4 hrs guiding came in at 0.25 RMS for me that’s exceptional and that was guiding on the zenith for most time imaging the iris nebula , now this was calibrated the other week as per phd2 guidelines Near celestial equator , so as long as that stays near that I ain’t recalibration dec and ra looked near flat 👍 Edited July 31, 2020 by Bottletopburly Link to comment Share on other sites More sharing options...
+RonC Posted July 31, 2020 Share Posted July 31, 2020 (edited) Sounds good David, I calibrated mine as per PHD 2.6.8 but I think using the Ioptron Ipolar cam has made a huge difference to my guiding. i was doing 10 min sub nearly as low a RMS as you!! Ron Edited July 31, 2020 by RonC added text Bottletopburly 1 Link to comment Share on other sites More sharing options...
Clive Posted July 31, 2020 Share Posted July 31, 2020 Perhaps the warm evenings have loosened up the grease 😁. I've not calibrated my setup since last September, I've not needed to. With my mount I don't get down that low but for my setup, I'm happy with it being below 1 arcsec RMS. Bottletopburly and +RonC 2 Link to comment Share on other sites More sharing options...
Bottletopburly Posted July 31, 2020 Author Share Posted July 31, 2020 3 minutes ago, Clive said: Perhaps the warm evenings have loosened up the grease 😁. I've not calibrated my setup since last September, I've not needed to. With my mount I don't get down that low but for my setup, I'm happy with it being below 1 arcsec RMS. may well be mount settling after belt mod clive Link to comment Share on other sites More sharing options...
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