So...I recently picked up a 70-200 f/2.8 IS II. I love my primes (and always will), but I had been thinking about this lens for a while because of the versatility in the telephoto range on the fly and the fast focusing. I am zoom-challenged, but here's my unscientific review in a word...AMAZING! Here are just a few shots from my most recent session for now. I had a blast shooting a fellow photographer's family! Thanks for looking. I hope to post more pics soon.
Tim
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EDIT: Here are a couple more pics...
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Looks like you are going to get along great with yours.. 

