New answers tagged manual-mode
This is actually a characteristic of the leaf shutter used in Fuji's X10/X20/X30 and X100 cameras. The leaf shutter can only travel so quickly. The wider the aperture is open, the slower the shutter speed has to be to accommodate the operation speed of the leaf shutter. It's a mechanical limit. In M and shutter priority modes, Fuji is allowing the faster ...
Manual control of the iPhone camera was not added until iOS8, and iOS8 cannot be installed on an iPhone 4. So unfortunately you cannot get the full manual control that you are asking for with your iPhone 4. iOS8 can be installed on a iPhone 4s but it isn't exactly highly advised as it can reduce performance of the older iPhones(as new iOS releases ...
I would be surprised an iPhone 4 (not a 4s) support advanced camera controls as it does not allow iOS8. iOS8 offer some additional controls but not in the native camera app; you need to get a 3rd party app like Manual (http://shootmanual.co/).
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