You asked for it, now read about it! It seems it is a problem that is
growing in epic pro****tion and is climbing the Google ranking system.
Here's a snippet from the article.
"I bought a second hand 16-35 f/2.8L II USM on eBay for a decent price.
It
is a spectacular lens that I used throughout the winter without problem.
I
noticed the other day the coating of the front glass is peeling like it
has
sunburn. What do I do? Am I stuck with a lemon? I called Canon and they
claim they never heard of this before."
<http://www.geocities.com/ritaberk2008/delamination.htm>
Rita