I recently acquired the M.Zuiko 14-150 weatherproof lens. I was out shooting with it when it started to rain and I thought "Great! money well spent . . ." And then, I started to adjust the zoom for a shot and I saw the soaking wet inner tube slide into the lens housing. Does anyone know or understand how a zoom lens can be weatherproof when you are sliding water in and out of the lens body while it's in use? Inquiring (and concerned) minds want to know . . . Thanks.