If your iPhone's automatic settings make a shot too bright or too dark, what specific control allows you to quickly make it a little brighter or darker without changing the shutter speed or ISO?

The specific control on an iPhone that allows you to quickly adjust the brightness without directly changing the shutter speed or ISO is the Exposure Compensation slider, often referred to as the Brightness slider. When you open the Camera app, tapping anywhere on the screen will set the focus and the initial automatic exposure for that point. A yellow square will appear indicating the focus area. Ad....