what makes you think that the Canon system or any other IS system in a
modern camera isn't backed by the same set of electronics? the Olympus
gyroscopes are much too tiny to control the moving element themselves and
feed into an electromechanical system just like the Canon and Minolta ones
do. why do you think the Canon system is remarked about as a big power drain
when it is enabled? the pendulum in the Canon system is way too small to
move any correcting element by itself. what do the electronic mode switches
on the Canon IS lenses for different modes of IS otherwise do then?

Herb....
----- Original Message ----- 
From: "Tom Reese" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, June 18, 2004 8:42 AM
Subject: Re: IS in Pentax *istD (was Re: canon vs pentax)


> It is still my opinion that placing little accelerometers in the camera
body
> to measure the amount and direction of movement and then operating other
> devices to counter that movement would be a kludge. The movement would
have
> to be calculated and predictions made on future movement to make the
> adjustments in real time. IMO making adjustments for movement that already
> occured would result in the sensor alignment always being slightly behind.
> Use of gyroscopes to provide a steadying lens element is a far more
elegant
> solution to the problem.


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