Battle of the Fast 50mm's: Sigma f1.4 Art vs. Canon f1.2 L vs. Nikon 58mm f1.4G - YouTube

The battle of the fast 50mm's is back! This time we have brought into the competition the latest standard prime lens from Sigma. The 50mm f1.4 DG HSM Art lens (http://bit.ly/sig50art) is large in size and ambitious by design. Can it beat its pricier rival

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