Portrait Mode Effects
In iOS 13, you get more control over Portrait Mode Lighting, letting you change the intensity of the light for more granular control over the look of your photos.
There’s also a new “High Key Mono” effect in iOS 13 that can make for some pretty stunning artistic-looking black and white photos. Apple previewed this on the new iPhone 11 last week, but it’s actually going to be available for in iOS 13 for all of the devices that support Portrait Lighting.