Requires iOS 8
This tweak unlocks some of Apple's iOS 8 hidden features in camera app related with camera focus behaviors. For example, the focus crop rect can be hidden using "x" button, perform separate focus and exposure, show current exposure bias value on top of screen. I also included some other configurations such as allow changing exposure in panorama ot time-lapse mode, hiding the exposure slider. More to check via Settings.
Note: Changes made in Settings (only for Apple hidden features) are permanently and not restorable via uninstall. You just have to set values to their defaults before you uninstall this tweak.
Configure from Settings.