You Want To Really Emphasize A Photo’s Shadows
If you want to make a photo darker so that shadows will contrast with the rest of the scene, use the camera’s built-in exposure compensation, says professional photographer Pei Ketron.
You Want To Capture A Splash
Burst Mode is your best friend for action shots.
You Want To Make Running Water Look Smoother
To give water a cool, blurred effect, many iPhone photographers use the Cortex Camera app.