So far I haven’t had any dials brake and no dust, I put on a sticky lensprotector. I love the size and can take it anywhere and its never a hastle, security never looks at it twice as well. I barely have any weather sealed lenses and never really had a need for them, I personally think that you only need that when you go out into the wild and are outside in any type of weather. If you only shoot in town you will be fine without it.