What difference does OIS make: Samsung Galaxy S6 vs HTC One M9
Optical image stabilization (OIS) made a splash in the smartphone world when the Nokia Lumia 1020, a camera centric phone with PureView technology and a whopping 41-megapixel shooter, incorporated it to make for sharper images and more stable video. It’s been a while since then, and these days most high-end smartphones feature OIS to capture better images and videos.
MINIATURE CORRECTIONS HAPPENING HUNDREDS OF TIMES MAKE A HUGE DIFFERENCE
Keep in mind that optical image stabilization is a physical mechanism that is built in the camera module allowing the whole module to ‘float’, counter-acting movements on various axes: yaw, raw, and pitch. This mechanism will make hundreds of miniature corrections, and this results in the footage looking more stable, but you can also notice a slight wobbliness around the edges of the recording.