My Mavic suffers occasionally from the out of focus area to the bottom right hand side as can be seen at 5:45 in the following vid. So I tap focused in the bottom third in from the right hand side and up from the bottom today and despite it being very grey and murky here today, all detail in the bottom right was pretty much spot on as was the rest of the frame. I know this won't work for all and will depend upon light, subject, subject distance, etc. but it has definitely helped mine.