Um trecho no Dpreview sobre a d780.
When shooting with the optical finder, the D780's uses the same 51-point hybrid AF system as its predecessor, the Nikon D750, but with updated algorithms and a higher resolution metering sensor for subject tracking, both borrowed from the Nikon D5. All points are sensitive to a –3 EV. Relative to peers and to its own live view AF system, the coverage of AF points across the frame feels somewhat limiting.
For live view, the D780 uses the same hybrid AF system as the Nikon Z6 with 273 phase-detect points, an absolutely huge improvement over the D750's contrast detect-only live view. All points are sensitive down to a claimed –5 EV (when used with an F1.4 lens).