Autoguiding with the Explore Scientific iEXOS-100 PMC 8

HX5BG36c

I am using a PMC 8 mount by Explore Scientific mount with an SVBONY 30mm guide scope and a ZWO ASI120MM Mini camera for guiding. I am using the ASI Air and I cannot get good RA guiding as it is spiking all over the place. The best I have been able to keep it is under 4". Does anyone know any settings that are good with this combination? Thanks!

Tech@ZWO

Hi, it is recommended that you check the polar axis accuracy, equator balance, and guide star accuracy (clear the guide star calibration data and redo the guide star calibration).
Also empirically, the guide mirror focal length is at least 1/4 of the primary mirror to ensure accuracy.