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.
macOS Catalina Now Available
Apple 24'' LED Cinema Display Available for Order
Apple recently discontinued the 23" Apple Cinema Display to make way for the new LED screen.
The new screen introduces an LED backlight, iSight camera, speakers, and Mini DisplayPort. Rumors have suggested that Apple could be updating the rest of their Cinema Displays at Macworld San Francisco 2009 in January.