what is ois in camera

OIS stands for Optical Image Stabilization, which is a hardware solution that uses a micro-electromechanical system (MEMS) gyroscope to detect movement and adjust the camera system accordingly. OIS is particularly useful in low-light scenarios, where the cameras shutter may be open for longer, and slight hand movements can cause motion blur. With OIS enabled, slight shakes are canceled out, making for crisper photos. OIS is a mechanical image stabilization technology powered by motors, which stabilizes the photography process by detecting the camera's movement and moving the lens with motors to counteract this. OIS is a must-have in modern smartphones, and most mid-range offerings from Samsung, OnePlus, and Google come with OIS on the main camera. OIS is a complex, expensive, and heavy setup in a smartphone camera setup, so manufacturers often skip adding OIS to the front camera on smartphones and offer a software-based stabilization (EIS) on the front-facing shooter to record smooth vlogs on the go.