What is Image stabilization ??
Image stabilization (IS) is a family of techniques used to reduce blurring associated with the motion of a camera or other imaging device during exposure. Generally, it compensates for pan and tilt (angular movement, equivalent to yaw and pitch) of the imaging device, although electronic image stabilization can also be used to compensate for rotation. It is used in image-stabilized binoculars, still and video cameras, astronomical telescopes, and also smartphones, mainly the high-end. With still cameras, camera shake is particularly problematic at slow shutter speeds or with long focal length (telephoto or zoom) lenses. With video cameras, camera shake causes visible frame-to-frame jitter in the recorded video.
A comparison of close-up photographs of a keypad with and without optical image stabilization.
Digital Image Stabilization
Real-time digital image stabilization—also called electronic image stabilization (EIS) -- is used in some video cameras. This technique shifts the electronic image from frame to frame of video, enough to counteract the motion.
Some still camera manufacturers marketed their cameras as having "digital image stabilization", when they really only had a high-sensitivity mode giving a short exposure time, resulting in pictures with less motion blur, but more noise .
Click this link, to make this concept clear .
Image stabilization (IS) is a family of techniques used to reduce blurring associated with the motion of a camera or other imaging device during exposure. Generally, it compensates for pan and tilt (angular movement, equivalent to yaw and pitch) of the imaging device, although electronic image stabilization can also be used to compensate for rotation. It is used in image-stabilized binoculars, still and video cameras, astronomical telescopes, and also smartphones, mainly the high-end. With still cameras, camera shake is particularly problematic at slow shutter speeds or with long focal length (telephoto or zoom) lenses. With video cameras, camera shake causes visible frame-to-frame jitter in the recorded video.
A comparison of close-up photographs of a keypad with and without optical image stabilization.
Digital Image Stabilization
Real-time digital image stabilization—also called electronic image stabilization (EIS) -- is used in some video cameras. This technique shifts the electronic image from frame to frame of video, enough to counteract the motion.
Some still camera manufacturers marketed their cameras as having "digital image stabilization", when they really only had a high-sensitivity mode giving a short exposure time, resulting in pictures with less motion blur, but more noise .
Click this link, to make this concept clear .
Stabilizing The Camera Body
A technique that requires no additional capabilities of any camera body–lens combination consists of stabilizing the entire camera body externally rather than using an internal method. This is achieved by attaching a gyroscope to the camera body, usually utilizing the camera's built-in tripod mount. This allows the external gyro to stabilize the camera, and is typically employed in photography from a moving vehicle, when a lens or camera offering another type of image stabilization is not available.
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