My Olympus E-M1 mark II does in-camera focus stacking with excellent results. It's limited to 9 shots, but for my purposes this has never been an issue, but I realize it might be for some shooting situations. I can even shoot hand held. Now, maybe being a smaller sensor helps in that regard - but it's certainly possible.Lets hope it does not do that. None of the combine software does a excellent job without user tweaking. It might be fine for a smart phone, but not a pro level camera.