To be clear, iOS 8 will expose just about every manual camera control possible. This means that ISO, shutter speed, focus, white balance, and exposure bias can be manually set within a custom camera application. Outside of these manual controls, Apple has also added gray card functionality to bypass the auto white balance mechanism and both EV bracketing and shutter speed/ISO bracketing.
Sounds good, but I hope the controls work better than the iOS 7 HDR button, which still keeps changing itself back to Auto.
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