Sigma 500mm f/4 DG OS HSM with Sigma 2x TC - Ákos Lumnitzer
Pacific Black Duck portrait

Pacific Black Duck portrait

Canon EOS 1Dx MkII, Sigma 500mm f/4 DG OS HSM Sport with Sigma 2x TC,
ISO 1600, f/11, 1/1600th, hand held

Sigma 500mm f4 DG OS HSM SportSigma SupertelephotoSigma lensSigmaAnatidaeAnas platyrhynchosPacific Black DuckduckAustraliaSydneybird photographyamatteroflightamatteroflight.comThe PondsNSW