Nikon has just announced the development of the Nikkor Z 28-135mm f/4 PZ power zoom lens for full-frame Nikon Z-mount cameras. Although Nikon already has one power zoom lens for APS-C cameras, the Nikon Z DX 12-28mm f/3.5-5.6 PZ VR, this will be the first power zoom lens for their full-frame system.