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1.4 Multiplyer for Canon/Sigma
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04-04-07, 15:50
postcardcv
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Join Date: Dec 2005
Location: Norfolk
Age: 49
Posts: 1,856
I've tested a 1.4x tc (actually tried both Kenko and Sigma) on the 170-500 with a 350D - neither gave AF and there was an obvious drop in IQ. Personally I wouldn't recommend using a tc with this lens.
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