Optical Image Stabilization
An optical image stabilizer (OIS) is a mechanism used in a camera camera that stabilizes the recorded image/video by varying the optical path to the sensor. This technology is implemented in the lens itself, as distinct from in-body image stabilization, which operates by moving the sensor as the final element in the optical path.
Seeing is believing, and this video really emphasizes the differences between taking a video with the iPhone 6s, a device that lacks OIS, and the iPhone 6s Plus, which features OIS built in.
And here’s a other video I took with my iPhone 6s Plus while walking on a broken ground.
Thanks for reading.