近年のスマホカメラでは、望遠カメラの性能競争が激しさを増しています。より大きなセンサーの採用や、さらなる高倍率撮影が求められる中で、焦点距離（レンズからセンサーまでの光路の長さ）をどう確保するかが大きな課題です。

The Xiaomi 17 Ultra Leica Edition features a physical Master Zoom Ring for controlling zoom on its 200MP periscope camera. Check it out!

The rotary control sits around the circular camera bump and appears to allow users to zoom in and out by twisting the ring, much like adjusting a lens on a mirrorless or DSLR camera.

Sony offers phones with a 12MP continuous optical zoom camera, but an upcoming phone ups the ante with a 200MP continuous ...