Canon Reveals Dual Shake-Correcting d-SLR Lens Tech

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Lake Success, N.Y. - Canon USA said Wednesday it has developed for forthcoming d-SLR lenses an optical image-stabilization technology that compensates for both angle camera shake and shift camera shake.

Canon said the Hybrid Image Stabilizer (IS), which will be commercially available later this year, uses several different preventative methods and corrective procedures to compensate for errors caused by camera shake, which occurs when a camera moves while its shutter is open and its image sensor is exposed to light.

The Hybrid IS technology is said to optimally compensate for angle and shift camera shake. Sudden changes in camera angle can significantly affect images taken during standard shooting, while shift-based shaking, which occurs when a camera moves parallel to the imaging scene, is more pronounced in macro photography and other close-range shooting.

The Hybrid IS incorporates an angular velocity sensor that detects the extent of angle-based shaking and is found in all previous Canon optical image-stabilizer mechanisms, as well as a new acceleration sensor that determines the amount of shift-based camera shake.

Canon also uses in the system a newly developed algorithm that synthesizes information from the two sensors to make optimal adjustments. This enhances the effects of image stabilization during shooting, including macro shooting.

Canon said it is aiming for the early commercialization and inclusion of the lenses in a wide range of products.

The technology is said to be a continuing extension of anti-shake technologies the company began offering in the EF 75-300mm f/4-5.6 IS USM lens introduced more than a decade ago.

To date, the company has produced 21 lenses with image-stabilization technology.


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