Smartphones' secret weapon: Multiple cameras

It’s no secret that smartphone’s are now by far the most popular cameras worldwide, as they become increasingly capable. While improvements in image processing, sensors, and optics have helped them catch up to more traditional cameras, many of their recent gains can be attributed to the creative use of multiple camera modules. That’s an option that standalone camera makers have experimented with (stereo and 360-degree models, for example), but have never pushed very far. .