Sigma120-300 vs canon 400mm

Started Mar 8, 2012 | Discussions thread
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maisatomai
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Sigma120-300 vs canon 400mm
Mar 8, 2012

A sigma 120-300 f2.8 will become 600 f5.6x with 2x tc. A 400 f5.6 will become 560f8 with 1.4x. On a sunny day, do you think will the sigma beat the canon?

Panasonic Lumix DMC-F5
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