Nikon D780 DSLR Camera (Body Only) - Manual (Page 847)

801 Technical Notes
1 Not available with spot metering.
2 Can also be selected via the flash unit.
3 q A/A mode selection is performed on the flash unit using custom
settings.
4 Can be selected using the [ Flash control ] item in the camera menus.
5 Available during close-up photography only.
6 Choice of q A and A depends on the option selected with the master
flash.
7 Supports the same features as remote flash units with optical AWL.
8 Available only in i-TTL, q A, A, GN, and M flash-control modes.
9 Available only in i-TTL flash control mode or when the flash is
configured to emit monitor preflashes in
q A or A flash control
mode.
10 Firmware updates for the SB-910 and SB-900 can be performed from
the camera.