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The Sigma 24-70mm f/2.8 DG DN Art II Has G Master Quality for Half the Price
PetaPixel-GearSigma updated its 24-70mm f/2.8 DG DN Art with a new body design, a new autofocus motor, and a reworked optical formula to make it lighter, smaller, faster, and sharper. That's the promise, anyway, but is it true?