« on: March 18, 2014, 02:34:00 PM »
A rave review from a 600mm f/4 IS L pro
Less than credible review.
He talks about f/4 to blur the background while most often at 600mm f/8 the DoF is barely enough to cover your subject. He boils it down to a mere 1.33 EV difference in luminosity, apparently disregarding the fact that the Canon focuses much faster. No mention at all about keeper rate. He gives very detailed technical info about each picture, except the two in which he compares the Tamron and the Canon.
And I'm saying all of this as a very happy owner of the Tamron. It's an amazing lens, but I can't stand the wilful spread of incorrect and biased information.