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Sigma 1.4x EX DG Tele Converter Review

The Sigma 1.4x EX DG Tele Converter offers build quality similar to the more professional lineup, Sigma EX. It should be noted that this teleconverter work with only Sigma lenses. Lightweight and relatively compact, the teleconverter can add longer focal-length to standard Sigma lenses. There are about a dozen of compatible lenses to choose from, […]