On Sat, 20 Jan 2001 04:19:09 GMT, "Alexander Ibrahim" wrote:

>I agree with David's assesment of the implementations, so let me
>talk about something else.
>
>Optical image stabilzation inertially manipulates a prism to
>stabilize the image.
>
>Electronic image stabilization performs transformations on the
>image. There is no known way to do these transformations without
>causing at least some image degradation.
>
>So is it noticeable? It depends on how carefully you look and
>what type of motion is being corrected for. EIS will always
>degrade the image. If you pause the frame and look at high
>contrast areas during motion you'll see aliasing and contast
>loss. Some "Golden eyed" viewers will see it clearly on normal
>playback. Most normal viewers will not notice any but the
>grossest errors.
[...]

Hmmm....;-)
It may well be that the motion sensor for EIS is
similar to the type used for OIS, but instead of
moving a prism, the centering of the read CCD image
area is adjusted. If true, there should be no visible
difference in the result with either system, given
enough light to overcome other differences... In
practice, I have never observed the motion artifacts
with EIS that I describes - the image is identical
with or without EIS on, still or in motion...