SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary Versus SIGMA 150-600mm F5-6.3 DG OS HSM | Contemporary » 160 Sanderling edge of frame 1500
And here’s a sanderling as seen through the 150-600mm C lens at 600mm. 1/800 F6.3 ISO 800. Both of these lenses are super-sharp at full zoom, even wide open!