Apple basically popularized the depth-of-field Portrait mode photography when it introduced the iPhone 7 Plus and its telephoto lens. Using camera software algorithms, it took advantage of the two iPhone 7 Plus lenses to create the look and feel of an image shot with portrait settings on a DSLR with a telephoto lens, the so-called bokeh effect that blurs the background artistically, making the subject stand out front and center.
Night mode comes to Portraits on the iPhone 12 Pro and 12 Pro Max
Take night portraits with the iPhone 12 Pro and iPhone 12 Pro Max
2. Swipe to Portrait mode.
4. Tap the Shutter button and hold the iPhone 12 Pro/Max steady to take a Night mode Portrait.
5. To stop a Night mode photo mid-capture instead of waiting seconds for it to finish, just tap the stop button below.