On Fri, 19 Jan 2001 17:22:30 GMT, "Evan Mann" wrote:

>Has there been any info to prove factually that optical stabilization is
>superior (with a noticeable level) to electronic image stabilization?

Depends on the implementation...
Panasonic EIS crops the picture to provide the
"motion-space" for stabilization, and this results
in narrowed picture angle of view and lowered
picture sharpness when the stabilizer is turned on.
Sony EIS allows for extra area around the normal
picture area, so the CCD image area and pixel-count
(and therefore the picture angle and sharpness)
remain unchanged when the stabilizer is turned on.
Negatives: the used area and pixel size are smaller,
hurting potential low-light image smoothness, and for
some reason, shutter speed is moved from 1/60th to
1/100th, forcing a gain increase (and even more
"graininess" in the image, especially visible
in low light). Bottom line: in bright light, Sony
EIS is fine and indistinguishable from OIS in
operation; in low light, its negative aspects show
as similar to the effects of too much gain increase.