First Look: Sigma 100-400mm F5-6.3 DG DN OS | Contemporary Ultra Telephoto Zoom lens » Laughing_gulls_DSC01058_2000px_Laughing_gulls_DSC01058
Both the focal plane sharpness and the bokeh/off-focal plane rendering of this lens are quite nice! 1/2500 F7.1 ISO 800 Jack Howard photo.