Nikon Z9 Mirrorless Camera - Manual (Page 438)

438 What Is Remote Flash Photography?
Using Remote Flash Units
Remote flash units can be controlled via:
• radio signals * ( 0 439),
• optical signals from a flash unit mounted on
the camera accessory shoe
( 0 453), or
• radio signals, with additional lighting
provided by a shoe-mounted flash unit
*
( 0 452).
* Radio flash control is available only when a WR-R11a or WR-R10 is
connected to the camera.