Sigma 500mm f/4 DG OS HSM with Sigma 2x TC - Ákos Lumnitzer
Eurasian Coot feeding

Eurasian Coot feeding

Canon EOS 1Dx MkII, Sigma 500mm f/4 DG OS HSM Sport with Sigma 2x TC,
ISO 800, f/8, 1/2500th, hand held, cropped by about 35%.

Sigma 500mm f4 DG OS HSM SportSigma SupertelephotoSigma lensSigmawildlife photographyEurasian CootRailRallidaeFulica atracrakeAustraliaSydneybird photographyamatteroflightamatteroflight.comThe PondsNSW