More seagulls with Olympus EM1X updated firmware with bird autofocus. Olympus 300mm/F4, hand-held. Top 3 images shot with continuous autofocus (CAF) only. Last 2 images were shot with CAF and tracking (TR)

CAF. Filled frame (50% crop). 1/2500, F4, iso640, 300mm

CAF. 100% crop. 1/2500, F4, iso500, 300mm

CAF. 100% crop. 1/4000, F4, iso500, 300mm

CAF+TR. 100% crop. 1/4000, F4.5, iso1250, 300mm

CAF+TR. 100% crop. 1/4000, F4.5, iso1250, 300mm