I discovered the focus problem on my iPhone 8 plus, immediately after updating to 11.2. It seems to be confined to the built-in camera app. Normal view photos and videos are fine, but the camera will not focus if you zoom or just use the 2x button. Interestingly, if you choose 2x for photos, things are blurry, but if you tap Portrait mode, the app focuses instantly. It's a temporary workaround for photos only. Apple support worked with me for quite some time (working through 2 people and finally to engineering). They ran remote diagnostics on the iPhone, had me video what happens, gathered a whole bunch of data, and it is now in the hands of the software engineering team. I'm supposed to talk again tomorrow. Definitely seems to be a software issue. One site posted instructions for downgrading to 11.1.2
https://www.gottabemobile.com/how-to-downgrade-ios-11/
[doublepost=1512485399][/doublepost]
I discovered the focus problem on my iPhone 8 plus, immediately after updating to 11.2. It seems to be confined to the built-in camera app. Normal view photos and videos are fine, but the camera will not focus if you zoom or just use the 2x button. Interestingly, if you choose 2x for photos, things are blurry, but if you tap Portrait mode, the app focuses instantly. It's a temporary workaround for photos only. Apple support worked with me for quite some time (working through 2 people and finally to engineering). They ran remote diagnostics on the iPhone, had me video what happens, gathered a whole bunch of data, and it is now in the hands of the software engineering team. I'm supposed to talk again tomorrow. Definitely seems to be a software issue. My 3rd party apps appear to be working fine (although I haven't confirmed if they are actually using the telephoto lens, which is the problem "eye"). One site posted instructions for downgrading to 11.1.2
https://www.gottabemobile.com/how-to-downgrade-ios-11/