Tapping into Sigma's long history of lens innovations, the 18-35mm 1.8 Dc Hsm incorporates a wide glass molded aspherical lens with Special Low Dispersion (Sld) glass to compensate for aberrations and curvature at the widest angle.
Tapping into Sigma's long history of lens innovations, the 18-35mm 1.8 Dc Hsm incorporates a wide glass molded aspherical lens with Special Low Dispersion (Sld) glass to compensate for aberrations and curvature at the widest angle.