In a low-light scenario, an iPhone photographer must compensate for the fixed aperture, which cannot be manually widened to let in more light, by manipulating the other two manual exposure controls: shutter speed and ISO. These controls are typically accessible through third-party professional camera applications or in some advanced modes of the native camera application that allow manual adjustment or exposure locking.
First, the photographer can adjust the shutter speed, which is the duration the camera's sensor is exposed to light. To compensate for low light, the photographer must use a slower, or longer, shutter speed. For example, instead of 1/60th of a second, they might us....
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