Technology to reduce the effect of camera shake takes two forms. One uses a motion sensor to control a lens or thin prism that shifts the image to counter camera movement. This form pioneered by Canon, is most suitable for still images and is available in several of their 35mm format lenses. Olympus offers image stabilized digital cameras and it is to become standard in more sophisticated, higher end equipment.
How It Works
A blurred secondary image, represented by the dotted lines here, can result if the lens moves while the picture is being exposed. A corrector group of lens elements within the lens hangs from a frame, Which allows these elements to move at right-angles to the lens axis. Motion sensors tell the frame which way to shift the corrector group to compensate for any movement of the lens.
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