Nikon Autofocus Speedlight SB-22 Instruction Manual page 6

ilOME]tIGIATURE
Bounce angle indicators
For bounce flash shooting,
see page 51
Battery cover indices
Battery chamber cover
Flash head
Autolocus assist illuminator LED
See page 21 to 23
Light sensor for non-TTL auto
llash operation
External power source terminal
Accepts power cord from Nikon DC
U n i t S D - 7
Mounting foot lock nut
Mounting lool Hot-shoe contacts