Optical Image Stabilization (OIS)

• In photography, image stabilization can often permit the use of shutter speeds 2–4 stops slower (exposures 4–16 times longer)
• OIS either moves the optics or imager to counter movement of the camera

The advantage with moving the imager, instead of the lens barrel, is that the image will be stabilized regardless of what lens barrel or imager format is being used, and no lens barrel tilt which would degrade image quality.