In the last few years, we have heard a lot of talk about camera models with IBIS or in-body stabilization. This incredibly useful technology physically moves your sensor to compensate camera movements. Image stabilization is available in many forms and has existed for much longer than you may think. This technology has existed since the 1990s. You might ask yourself: What is image stabilization if you are new to photography or digital cameras?
What is image stabilization (or image enhancement)?
The image stabilization feature of a camera compensates for small movements that may occur when taking a photo. The movements are caused by a variety of factors, including the shake of the hand, a breeze or pressing the shutter during a long-exposure.
IS (as image stabilization is called) is designed to stop what is known as ‘camera shaking’, and to make it easier for the photographer to take clear, sharp photos even in low light conditions or when using a slow shutter. Image stabilization can be especially helpful for photographers who have to use their cameras handheld for long periods or need to keep them steady.
OIS vs EIS
There were two types image stabilization for a long period of time: optical image stabilizer (OIS) or electronic image stabilizer (EIS). OIS works by physically moving a floating element in the lens to counteract camera movement during exposure. This feature helps maintain a steady image and produces sharp, clear pictures.
OIS detects camera movements and adjusts the lens in response. The motor controls a platform that mounts the lens element on. The motor moves the element to counteract camera movements, maintaining the image. OIS systems can use more than one lens element, each of which can be moved independently to increase stability.
OIS is particularly useful when shooting in low-light conditions or with a slower shutter speed. The OIS helps produce clear and sharp photos even when the camera is held in your hand. OIS is a feature that’s popular with photographers who do not have a tripod (or who don’t want one to be carried) or who wish to take pictures in difficult conditions.
OIS is also useful in videography as it keeps the image steady when moving the camera. It produces smoother, more professional video footage. This is important for videographers capturing action scenes or moving objects.
EIS compensates for movement by using software. Both image stabilization techniques produce clearer, sharper images. However, OIS is considered the most effective in terms of quality.