My first outing with the Nikon Z 400mm f/2.8 TC couldn’t have been a better test. I found a pair of starlings squabbling in mid-air, twisting and jostling at speed — the perfect opportunity to see what this lens could really do. The combination of fast autofocus and incredible optics meant I could freeze the action with confidence. Shooting at high shutter speeds while keeping the ISO low delivered beautifully clean files, even in challenging light. The results were impressiv