→ Not a secret: the new Nikkor Z 70-180mm f/2.8 (1,246.95) is based on the Tamron 70-180mm f/2.8 Di III VXD lens ($1,099) – see also this specs comparison.
→ Sample photos at Explora
→ Hands-on at 42West.
→ Hands-on from Nikon Plaza Tokyo/Osaka.
→ Hands-on at DC.Watch.
Nikkor Z 70-180mm f/2.8 pre-orders:
Nikkor Z 180-600mm f/5.6-6.3 pre-orders: