Improving SCT Autofocus in NINA

A follow-up video to document changes I made to the NINA autofocus parameters for use with my Celestron C9.25 SCT. I had been getting consistently poor hyperbolic curve fits and now the results are consistently very good. Backlash, backlash, backlash. Increase the backlash setting! Other changes include using only the Lum filter for autofocus and setting the minimum-acceptable R^2 "goodness of fit" to 0.9. Try these parameters out if you're getting poor autofocus results!