Nikon D810 - Manual (Page 220)

196
Flash compensation is used to alter flash output by from –3 EV to
+1 EV in increments of
1 /
3
EV, changing the brightness of the
main subject relative to the background. Flash output can be
increased to make the main subject appear brighter, or reduced
to prevent unwanted highlights or reflections.
To choose a value for flash compensation, press the M (Y)
button and rotate the sub-command dial until the desired value
is displayed in the control panel. In general, choose positive
values to make the main subject brighter, negative values to
make it darker.
At values other than ±0.0, a Y icon will be displayed in the
control panel and viewfinder after you release the M (Y) button.
The current value for flash compensation can be confirmed by
pressing the M (Y) button.
Normal flash output can be restored by setting flash
compensation to ±0.0. Flash compensation is not reset when
the camera is turned off.
Flash Compensation
M
(Y) button Sub-command
dial
±0 EV
(M (Y) button pressed)
–0.3 (– 1 /
3
) EV +1.0 EV