If you’re having issues, like I was, with your iPhone 6 Plus camera taking blurry pictures it’s not just that you’re too nervous and shaking the phone when snapping those pictures. It’s actually a known issue that Apple has acknowledged and is offering replacement of the iSight camera on eligible iPhone 6 Plus phones.
On this website, you can enter your serial number and it will instantly let you know if you qualify. After that it’s just a matter of setting up a genius appointment (or one of the other two options) to have your item repaired free of charge.
I managed to get mine replaced this past week. I was in and out in 1 hour and my selfies has never looked crisper.