Oppo is jumping into the dual camera age with their own take at MWC 2017.
A two-sensor system that combines a standard angle camera with a telephoto zoom, but taking it all the way to 3x optical zoom with a system that uses a prism in a periscope arrangement. At first that might seem similar to the original ASUS ZenFone Zoom.
While the camera module itself is capable of 3x optical zoom, Oppo’s touting this as a “lossless” 5x camera. They’re doing some fancy image merging trickery, using data from both cameras to add detail to an otherwise digitally zoomed image. Oppo’s demo devices actually zoomed to 10x digital with a surprising amount of detail and steadiness.