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Canon Patent Application: IBIS+IS continuous shooting
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Canon Patent Application: IBIS+IS continuous shooting

In this patent application, Canon looks at IBIS+IS and the impact upon continuous shooting.  They are concerned that continuous shooting speed may be impacted by the movement of the IBIS element.

The imaging systems disclosed in JPs 2009-265182 and 2015-194712 need a long time to prepare for the image stabilization due to the calculation of the moving amount of the image sensor and the movement of the correction lens to the center position in the movable range. For this reason, for example, when the image stabilization is performed by moving both the correction lens and the image sensor during imaging in continuous image capturing, the continuous capturing speed may become lower depending on the calculation time and the movement time of the correction lens.

How Canon seems to be getting around this is by checking to see if the shutter speed higher than a predetermined speed; or the camera is set to continuous mode, and if the IIS centering time is greater than the interval time of taking the image.  If one of those two conditions are met then the camera stops IBIS+IS.  It gets more complicated as Canon takes into account other factors, but that's the basic gist.

I guess it makes sense, if you have a high enough shutter speed, you aren't going to see any gains from having IBIS+IS enabled, and may as well dynamically turn it off to get faster continuous shooting.

While this may be less of a problem normally, I'm sure that at 20fps there could be issues.

US Patent Application 20200162674


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