The difference between optical image stabilization and electronic image stabilization

June 24 16:11:26, 2020

As an optical image stabilization technology, it does not allow the camera body to shake. It depends on the structure of a special lens or CCD sensor to minimize the image instability caused by the jitter of the operator during use. The image stabilization achieved by the lens group is mainly represented by Canon and Nikon. They rely on the magnetic force to wrap the floating lens, which effectively overcomes the image blur caused by camera shake. This is more obvious for digital cameras with large zoom lenses. Usually, the gyroscope in the lens detects a slight movement and sends the signal to the microprocessor to immediately calculate the amount of displacement that needs to be compensated. Then, by compensating the lens group, the gyro can be compensated according to the direction and displacement of the lens. Overcome image blur caused by camera shake. And through the CCD to achieve anti-shake, Konica Minolta is currently only able to do, and its principle is contrary to Canon, Panasonic optical anti-shake technology, is to rely on CCD floating to achieve anti-shake purposes. The principle is to first fix the CCD on a bracket that can move up and down, and to sense the direction and amplitude of camera shake by the gyro. Then the sensor sends the data to the processor for screening and amplification, and calculates the amount of CCD movement that can offset the jitter. .

The electronic anti-shake is to reduce the effect of jitter by increasing the shutter speed, but it generates more noise.

Popular point, electronic image stabilization is to shoot something is dithering, and then through a series of electronic imaging technology to make the picture look jittery, this is definitely to sacrifice clarity and increase noise to achieve, and optical image stabilization is through Physical technology to achieve the lens or photosensitive element and body shake direction to compensate, and strive to make the picture is stable, of course, will also sacrifice a certain degree of clarity, but the imaging is basically not jitter, but due to the complex structure of the optical image stabilization device, so Causes high production costs.

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