Nikon Speedlight SB-16 Instruction Manual page 40

-CONTROLS IN DETAIL-continued--------_
With the SB-16B
As soon as the flash unit is turned on , the ready- light on
the flash unit lights up when the flash is ready to fire ,
while the ready-light in the camera 's viewfinder blinks in
the following cases :
40
1) When the shooting mode selector is set at TIL with any
camera other than the Nikon FA, FE2, F-501/N2020,
F-301/N2000 , FG, or Nikons-V.
2) When using the FA, FE2, FG or Nikonos-V to perform TIL
automatic flash photography with the camera's shutter
speed dial set at a mechanical setting (M250, M90 or 8).
The B setting on the F-501/N2020 and F-301lN2000
camera is not a mechanical setting; you can use any set-
ting on the camera's shooting mode selector.
3) When
using the FA, FE2, F-501/N2020, F-301/N2000, FG
or Nikonos-V to perform TIL automatic flash photography
with a camera film speed setting over the usable range,
without exposure compensation (or when using DX-coded
film with film speed higher than ISO 1000 for the
F-501/N2020 and F-301/N2000). Make sure to use film
within the usable range for TIL flash photography (ISO
25 to 400 with the FA, FE2, FG or Nikonos-V, or ISO 25
to 1000 with the F-501/N2020 and F-301/N2000) .
With the FA, the ready-light also blinks when the film
speed setting on the camera is near ISO 12, with or
without exposure compensation in the
+
direction.
4) When the shutter speed setting on the FM2 or FE is im-
proper for flash synchronization and the camera's meter
is on (only in the case of the FE).