Quote - The one thing that still concerns me is the anti-dust mechanism.  It appears to be a similar to that found in the Oly's....ie an ultrasonic vibration of the sensor/filter assembly.  Don't get me wrong, getting the dust off is a good idea.....however, shaking the crap (pun intended) out of your sensitive electronic components doesn't seem like a good idea.  I have heard reports (unconfirmed)of sensor re-alignment because of this...tilted sensor and change in focal plane issues. Any small change in sensor position after a shake would be disasterous.  Some manufacturers claim it is only the filter that gets the shake....if that's the case that means if anything gets between the sensor and filter you'll never get it out. 

No, absolutely wrong!  The sensor does NOT shake!  The way the system works is there is a small, circular transparent filter in front of the sensor which vibrates at ultra-high frequency.  The sensor does not shake; the filter vibrates, and there are no needed sensor realignments period because of this technology.  I have never heard of this happening and I belong to every major Oly forum out there.  All major manufacturers should be employing this technology.  It works, I know, I own two E-1s and one E-500, and have a combined talley of over 50,000 photos with them.  You do the math on how many times these cameras have been powered on.  And I've NEVER experienced dust between the filter and the sensor and I've never heard of anyone else experiencing this.  Why?  Because it's impossible for this to happen design-wise.  I have, however, seen examples of filthy sensors on Canons and Nikons and it ain't pretty.  The new Panny L1 employs the same SSW technology as the E series Olys; God only knows what Sony is using, but being a Sony, I'm sure it won't work.  BTW, Oly owns the patent.

I'll change lenses on my E's in a dust storm and not panic.  Try that with a Canon or Nikon :)

Kind regards,

Steve