May be someone can clarify that.
Reading on photozone about some lenses: http://www.photozone.de/sony-alpha-aps-c-lens-tests
the chap mentions for CZ and Sony lenses that they are NOT sealed at all. My dealer mentioned them to be sealed, in my case the 24-70 and 70-400, but it would not be mentioned explicitly.
I really ponder about that. If they should not be dust and splashwater sealed, what would be the point having a sealed body if you can not walk around in rain with it?
So what is your knowledge on that matter? Thanks!