Pretty sharp for portraits. Compact for the focal distance 300mm. Even though, it becomes softer at longer zoom distances. Very soft beyond 200mm. I've pushed myself to use this lens not once. Nevertheless, I've found that the combination of Nikon AF-S DX Nikkor 18-105mm + Sigma (macro)105mm F2.8 EX DG OS HSM + Nikon AF-S Nikkor 300mm f/4D ED-IF is much more useful and flexible for me.