Sigma 18-50 f/2.8 EX DC(Image courtesy of Sigma Corp. of America)

The Sigma 18-50 f/2.8 EX DC Lens In Focus

Sigma’s 18-50mm f/2.8 EX DC lens targets the higher end of the market – with features such as a constant maximum aperture throughout the zoom range, internal focusing and high grade optics. Mitch Schlesinger gives us a review of this standard zoom lens.

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