Nikon D300S - Fvlock

FVLock
This feature is used to lock flash output, allowing photographs to
be recomposed without changing the flash level and ensuring that
flash output is appropriate to the subject even when the subject is
not positioned in the center of the frame. Flash output is adjusted
automatically for any changes in
ISO sensitivity and aperture.
To use FV lock:
ED FV lock (QK)
f5 Assign Fn button
Fn button press
, &B Preview
i~""
f' .!.i,
~{ 9i AElAF lock
.~.
f,:':' rj;j A£ lock only
~" r5'i!~ AE lock (Reset on release)
; r5'i!@ AE lock (Hold)
• fi'j AF lock only
1 Assign FV lock to the Fn button.
Select FV lock for Custom Setting fS
(Assign Fn button> Fn button press,
CD 292).
2 Press the flash pop-up button. I·
The built-in flash will pop up and begin
charging.
3 Focus.
Position the subject in the
center
of the frame and press
the shutter-release
button
halfway to focus.
178