Protecting your lenses when travelling

I would say YES, turning (IS) off anytime the camera is subjected to constant motion or vibration would be a good idea.

However, me being a mechanically logical individual, I know with certainty that, so long as the main camera power switch is OFF, everything else is also OFF, except of course the clock.


I have gotten used to always leaving both (IS) and (AF) off, doing my focusing manually; such that, whenever I pick up the wife's camera (identical to mine, by the way) it almost scares me when all those little motors start whirring.

On a side note, my batteries last about five times as long as her's before they need charging.