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<blockquote data-quote="Stoshowicz" data-source="post: 367983" data-attributes="member: 31397">I agree ,that VR could explain some soft images- If there was a delay of 1-1000 of a sec between the command to release the shutter and its commencement to actually move, Id figure the camera could have two data points to predict motion and make a smooth correction during the exposure based on that prediction.&nbsp;In fact ,I thought that was what predictive 'focus' was supposed to do, and that VR was similar, but since shutter operation time is always at sync speed rather than ones speed setting , then the consideration should then be that any camera motion one would see at 250th of a sec or so , should still impact an image even if the shutterspeed was 1-8000th of a sec.&nbsp;1-1000th of a second is a somewhat arbitrary shutter speed selection as a breakpoint , since even at that number the camera is still having enough time to sample and adjust at least four or five times no matter what speed setting one chooses. The book is very vague about exactly what the camera is mechanically doing.</blockquote>

[QUOTE="Stoshowicz, post: 367983, member: 31397"] I agree ,that VR could explain some soft images- If there was a delay of 1-1000 of a sec between the command to release the shutter and its commencement to actually move, Id figure the camera could have two data points to predict motion and make a smooth correction [U]during[/U] the exposure based on that prediction. In fact ,I thought that was what predictive 'focus' was supposed to do, and that VR was similar, but since shutter operation time is always at sync speed rather than ones speed setting , then the consideration should then be that any camera motion one would see at 250th of a sec or so , should still impact an image even if the shutterspeed was 1-8000th of a sec. 1-1000th of a second is a somewhat arbitrary shutter speed selection as a breakpoint , since even at that number the camera is still having enough time to sample and adjust at least four or five times no matter what speed setting one chooses. The book is very vague about exactly what the camera is mechanically doing. [/QUOTE]

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