[Rover]

With such ultra wideness everything is basically in focus anyway, if you set the focus at a reasonable setting. No need to focus. 10mm on FF is 7.6mm APS-H equivalent, hard to imagine, isn't it?

At least the 14mm I have misses focus plenty of times. Definitely I can't say "everything is in focus", and it definitely isn't even with the 10-17mm fisheye I have in the household. Maybe it comes close to that when focusing at long distances but, well, that doesn't cover my usage of an ultrawide.

Or maybe our definitions of what's in sharp focus differ. If something isn't smeared into background blur that surely doesn't it automatically make usably sharp for me - the subject has to be sharp period, not some ways off it though "maybe" saved by the deeper depth of field.