# OIS
> OIS physically steadies a camera lens or sensor to reduce blur from shaky hands.
Topics: Smartphones
Difficulty: Everyday
Aliases: optical image stabilization
Updated: 2026-06-26T08:00:00.000Z
## Go deeper
OIS physically steadies a camera lens or sensor to reduce blur from shaky hands. In everyday buying decisions, the useful question is not just what the spec says, but what it changes for comfort, cost, speed, safety, or battery life.