9 out of 10 points and recommendedgreat resultsno is
I own Bigma and Tamron 200-500. Use with Canon 5D. CS3 records that Tamron is 200-486.reviewed October 29th, 2015 (purchased for $850)
I did tests to see if whether Tamron or Bigma is of longer zoom. Tripod, focus on same subject. Very obviously, if Tamron is 486mm, Bigma at the very most is 450mm, a good chance even shorter at 440mm.
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