I took the MIni3 Pro out for a fly this morning, and I see when I get home that one batch (all from one location) are out of focus. It’s the second time this has happened. The other flights either side are perfectly fine - it just seems to be the one flight that had issues. All flights had an ND filter on, so it’s not that. Anyone got any good ideas - I suspect it might be something I’m doing, but I’ve no idea what… you can’t tell on the screen that there’s a problem, so not till I get home do I see there’s an problem… So any advice welcome… thanks
Are you taping the middle of the screen to set focus to infinity once you’ve taken off, Diane? 
Have a look at this from @Windswept
I sent mine back for a similar issue
I was fiddling with auto, and pro settings, so no I didn’t… know what - I reckon that’s what it is / was… hmm… stupid operator error… I’ll look at the video anyway…
Thanks all - knew I could rely on this lovely group…
We need another meet up… 
I knew it was operator error… sigh!
Your wish may be granted soon 
I’ve had this problem a few times, even though it’s been set on “infinity”. Landing, turning off the drone then restarting solved it for me. 
been having the same problem regarding focus but not focusing at all, found another forum and their answer fixed my issue.
so what was said is to do with what the camera is pointing at when you turn the drone on. if the object is very close to the lens the camera will set that as its maximum focal range, so anything past that it will not be able to focus on. advised remedy was to point the camera towards the horizon when you switch it on, hence the focal range is now infinite. tried this method a few times and it works perfect on both AF and MF.
hope this helps someone out there.
Hi @Gary_Marnell, it looks as though you’re quite new here 
Why not nip over to the Introductions page, and say hello properly and tell us a bit about yourself. 