All images by DPReview In our conversations with Nikon representatives, one phrase has come up again and again: 'A D3 moment'. The company is hoping that the new Z9 will have the same impact on the mirrorless Z-mount lineup as the D3 did for its DSLRs. But what exactly does a 'D3 moment' mean? Picture this: Nikon is on the back foot. The company's traditional dominance of the high-end camera market has been steadily eroded, with the biggest threat coming from a hungry competitor with a reputation for technical innovation and rapid iteration. Nikon – a company once synonymous in the camera world with the word 'professional' – is at risk of appearing out of date, and out of step with a new and more demanding generation of photographers, tempted by flashy new technologies on offer elsewhere. But all that is about to change; at least that's what Nikon executives hope. And now, in the sweltering Tokyo heat, the company's leaders, engineers and m