I downloaded the 2.0 firmware from Nikon USA Web site at about 2am their time and updated my Z6. All the speculation is over....it really works .
The tracking is faster and in much lower light. Burst mode H is useful now that there is good frame to frame consistency and it focuses at l least 2 stops low light at 2.8 than a D800 and 1 stop Lower than a D850. I left the house before trying eye focus because no one was at home with eyes. I tried it while out at the Hermitage Museum getting tickets for a tour group and it did not appear to work. But experimenting with it at lunch taking a photo of my favorite waitress in low light where her face was very dark and there was a strong back light....a very difficult shot. 1/60 200 mm f2.8 ISO 24,000 eye focused dead on without me positioning the FP. Very impressive.
Well Done Nikon
The tracking is faster and in much lower light. Burst mode H is useful now that there is good frame to frame consistency and it focuses at l least 2 stops low light at 2.8 than a D800 and 1 stop Lower than a D850. I left the house before trying eye focus because no one was at home with eyes. I tried it while out at the Hermitage Museum getting tickets for a tour group and it did not appear to work. But experimenting with it at lunch taking a photo of my favorite waitress in low light where her face was very dark and there was a strong back light....a very difficult shot. 1/60 200 mm f2.8 ISO 24,000 eye focused dead on without me positioning the FP. Very impressive.
Well Done Nikon