| http://www.w3.org/ns/prov#value | - I was impressed with the 2.8 L non IS, but felt that the sigma or Tamron could probably do as great of a job for less money, and I would end up getting the IS version later on down the road, so I had sort of ruled out the 70-200 2.8 L on those merits, and decided to test the 3rd party offerings...The tamron got ruled out immediatley because I didn't like the push/pull to go from manual to autofocu
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