I attached the Nikon Z7 with my Nikkor 400mm f/2.8 ED FL and the Nikkor 600mm f/4 ED FL lenses for compatibility testing - here is what I discovered.
Firmware used 2.0: The Z7 performed very well overall especially with stationary subjects. Due to a slight shutter release to EVF lag those faster moving subjects were somewhat more difficult to capture as compared to my D850 and its Optical Viewfinder.
The The Nikon Z7 and Z6 camera are so light it difficult to balance the camera on the super telephoto lens without adding some rear counter balance, the system remains front heavy. Good news is the camera has two bottom attachment for adding weight - you need to be creative or add some optional weights to the 1/4 tripod mount on the bottom of the Z camera. . The FTZ adapter allows a bottom adapter and the other is at the camera adapter, so get creative if the front balance is a problem. Adding a 1.4 TC makes the situation a little better but the combination still remains front heavy without some rear counter balance.
Image Quality: IMHO I find the Nikon Z7 to have a better sensor than the Nikon D850 and thus the images appear more pleasing, at least that is what my eyes see.
Speed of Focus and Accuracy: I give the edge to the D850 for sure speed and the D850 seem to do better in complicated shooting situations. However the Z cameras are no slouch and perform remarkably well with these F mount lenses.
Image Stabilization: Know when to use it for sharper images and know when not to. When on a tripod in very bright lighting conditions I tend not use the stabilization. How does the Lens VR work with the Camera in body Stablization? they work very well together but as I mentioned in my other reviews it is either all or nothing. You can not turn off the lens VR and use only the Camera IBIS or vice versa and if the VR is on and the camera is active the VR is humming away unlike when using a DSLR which activates the VR when the shutter is half pressed and turns off the VR when the image is taken.
Overall the Nikon Z is a remarkable mirrorless camera and ushered in a new era, especially considering all the technical advances in photography the Z brings to the table. The current limitation for mirrorless overall is when working with the fastest of moving objects the speed in which the EVF is updated is still a bit behind the optical experience.
|Gitzo Series 3
||Gitzo Series 4
| Benro Gimbal
|| Wimberly Gimbal
For my wildlife setup, I use the Wimberly Gimbal Head with a Gitzo Series Three Carbon Tripod. However, using the 600mm I feel a series 4 or even 5 tripod would be more appropriate.