Sad day today, as I had to say goodbye to one of my trusty UV Filters.
I removed my 70-200/2.8L II from it's case, and noticed a funny sound, and upon closer inspection (once I'd carefully removed the lens cap), I found this ...
Of course nobody around the house knows anything about dropping it, but it was fine a few days ago - I sure as heck didn't drop it - and nobody else would have had it out of the padded case. So I hate to think how a lens - in it's manufacturer designed padded case - with a lens cap on - gets to break an attached UV filter!
Luckily, lens appears to be OK.
To everyone who doesn't believe in UV filters for lens protection, now might be a good time to think again!