teleconverters


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HelmetBox

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Sep 9, 2003
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I've read that quality is compromised when lenses are coupled with a 2X teleconverter, how true is this? Is it true then that a 1.4X converter will not compromise much of the quality?

I'm using a Sigma 70-200mm on a 10D, would it be better to get a sigma converter or a canon one? Anyone knows the rough cost?

Thanks!
 

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