I use my iPhone as part of my daily workday and many times I'll be using the camera to snap photos of serial number and asset tags on computers for later entry into a database. Under IOS 6 I'd just snap the pic and it would be fine. Under IOS 7 I notice a behavior where the camera will try to focus on the tags over and over again until it finally snaps into focus. It sort of does this: almost in focus-blurry-almost in focus-blurry-almost in focus-blurry-focus! Has anyone else experienced this or might it be a problem with the lens itself?