Nikkon 70-300mm f/4.0-5.6D VS. Sigma 70-200 f2.8 which is better?

Nikkon 70-300mm f/4.0-5.6D VS. Sigma 70-200 f2.8 which is better? If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewin

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