Overview

The Sigma AF 70-210 mm f/4-5.6 MC Zoom-Kappa is a compact push-pull zoom from the film era, noted for surprisingly good sharpness, especially in corners wide open, with some chromatic aberration at the long end. Build is solid but heavy, with a narrow focusing ring and a long minimum focus distance. Autofocus is quick in normal use but slow when racking from near to far. It suits budget-conscious photographers seeking a vintage look on full-frame, though it is outperformed by modern zooms like the Sony 55-200mm.