clear filters

This is why you use a clear filter on your lenses.

Camera and lens are fine, because the filter took the brunt of the fall off my desk.  So, make sure you have a clear filter on all your lenses.  UV will work, but SkyLight will not because it adds a blue cast.

And while we are on the subject, a lens cap would not have helped much here...I do not believe in them anyway, they just get in the way.