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Old 01-01-2009, 12:26 PM
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AlexN
Tunnel Vision

AlexN is offline
 
Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,801
I've used one... unless you are REALLY REALLY picky, you wont notice the difference between the sigma 70-200 2.8 and the Canon 70-200 2.8L...

The canon one is much more reliable in terms of focus accuracy, and just that hint sharper at 2.8, a little more contrasty depending on the conditions... but overall, its much of a muchness....

Stopped to F/4~F/8 its almost impossible to know the difference between them.
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