I agree - look towards the end of the temple (the ear rest, if you like), that band is more in focus in the fcamera than camera-ui2 shot.

Talking of focus: that tap selectable focus circle option in fcamera is a really nice utility. The focus box in camera-ui(2) is quite large and can struggle to lock correctly. For example, focussing across a table with a few objects can be tricky. Nicolai's new focus distance display goes a long way in helping assess where is the focus, particularly at short range. Thanks for that.