Does anybody know how much a modern E-Mount lens can withstand? I mean: Is it a problem when it's raining, when some sand is in the air (of course while using a filter to protect the front lens) or when dropping the lens? I recently dropped my 24mm lens (well, actually the camera strap flew apart ...), and it shows some damage on the lens barrel. The lens hood was sent in to service it (broken out of box), so no protection on the lens construction other than a filter. Could this damage the lenses inside or set them out of place? In my case, luckily, everything seems okay, but with how much damage can such a lens deal?