A tale of two lenses. A tale of two lamp-posts.

I've written a short piece about the fun(!) I've had this week comparing two 'identical' 70mm-200mm lenses with one other. The article is on my personal blog and is pitched at non-photographers. You can laugh at my ineptitude at http://markpugh.blogspot.com/2010/11/tale-of-two-lenses-tale-of-two-lamp.html#more