[Or why a 70-200 is not the best lens for a wedding…]
See the whole series:
http://jeffascough.typepad.com/jeff_ascough_blog/2009/06/one-of-the-most-used-lenses-for-wedding-photography-is-the-big-70-200-f28-personally-ive-never-seen-the-fascination-for-us.html