>I do not have that lens, but I have not had that problem with >other Nikon lenses. Did the lens get hot somehow? If you were >with children, could the sticky substance be from some candy >or ice cream or something? > >Rocky
Not really. Temp was about 90, kids didn't have anything sticky. The substance appeared to be the glue that binds the rubber grip ring to to focusing ring. When I pressed down on it with the tip of my finger, the glue seemed to seep out from under the rubber. I have never had this problem with any other lens even in hotter temperatures!