I understand the frustration. I have had cameras of all prices with autofocus behaving bad, often at the worst time. This is why turning it off, monitoring it carefully, and making adjustments by hand is the only way to guarantee results 100% of the ...
When recording video of a stationary subject, your best bet is to use an external monitor. This allows you to view the overall image on the large external monitor and use the camera’s monitor to check focus in magnified mode. At this point you can tu...