Night mode is an automatic setting which takes advantage of the new wide-angle camera that's in the iPhone 11 and 11 Pro models. It's equipped with a larger sensor that is able to let in more light, allowing for brighter photos when the light is low.
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Apple Shares New Video Highlighting Portrait Lighting on iPhone X
In the 38-second video entitled "A New Light," Apple explains that Portrait Lighting offers studio quality lighting effects without the studio, while also showing off each of the different Portrait Lighting options.
Portrait Lighting on iPhone X creates studio-quality lighting effects. See portraits and selfies in a whole new light.Portrait Lighting is a feature available for both the iPhone X and the iPhone 8 Plus, but the iPhone X is the only device that offers Portrait Lighting effects for both the front and rear-facing cameras thanks to its front-facing TrueDepth lens system.
Apple's Portrait Lighting feature uses sophisticated algorithms to calculate how your facial features interact with light, to create unique lighting effects. There are several Portrait mode lighting presets, including Natural Light, Studio Light (lights up your face), Contour Light (adds dramatic shadows), Stage Light (spotlights your face against a dark background), and Stage Light Mono (Stage Light, but in black and white).
Portrait Lighting is one of the new features that Apple has focused on a few times before in past videos, sharing Portrait Lighting tutorials and demonstrations of Portrait Lighting in action. Most of Apple's prior videos focused on the iPhone 8 Plus, though, while this one is specific to iPhone X.