What is the meaning of IS in a digital camera lens?
IS is the meaning of anti-shake, generally for Canon's machine
IS refers to the image stabilization system, commonly known as anti-shake. Roughly divided into OIS optical image stabilization and EIS electronic image stabilization.
IS is an abbreviation for Image Stabilizer. This is the habit of mentioning the "anti-shake system."
At present, anti-shake technology can be divided into three types: optical image stabilization, electronic image stabilization and photoreceptor (CCD) image stabilization.
Hand-held camera failure a lot due to camera shake, especially in the use of telephoto lens when the most obvious. IS Image Stabilizer is Canon's hand-correction mechanism developed to solve these problems by compensating the camera's shaking through the motion of the lens for clearer imaging. (According to official data, with IS anti-shake ability S2IS can reduce the security shutter 2-3)
