That¡¯s great news. What autofocuser hardware? I put together a DIY system called ¡°myFocuserPro2¡±. The documentation has good explanations of critical focus zone and backlash that helped me tune NINA AF settings. I am reliably hitting 1.5¡± HFR on an f/7 scope using NINA. Aim for about 1.5 CFZ per AF step, 4 or 5 AF steps on either side of focus, and compensate for backlash. Cuiv The Lazy Geek has a good YouTube video on backlash settings.
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Edward
Edward Plumer