Sigma 500mm f/4 DG OS HSM Sport with Sigma 1.4x TC - Ákos Lumnitzer
Australian White Ibis congregating at dawn in B&W.

Australian White Ibis congregating at dawn in B&W.

Canon EOS 1Dx MkII, Sigma 500mm f/4 DG OS HSM Sport with Sigma 1.4x TC,
ISO 6400, f/5.6, 1/40th, full Wimberley Gimbal head on skimmer

Sigma 500mm f4 DG OS HSM SportSigma SupertelephotoSigma lensSigmawildlife photographyAustralian White Ibisibisbin chickenAustraliaSydneybird photographyamatteroflightamatteroflight.comThreskiornithidaeThreskiornis moluccaPitt Town LagoonNSW