Nikon D5500 - Manual (Page 153)

129 P, S, A, and M Modes
Exposure Compensation
Exposure compensation is used to alter exposure from the value
suggested by the camera, making pictures brighter or darker
(
0 367). In general, positive values make the subject brighter
while negative values make it darker. It is most effective when
used with
M (Center-weighted metering) or N (Spot
metering) ( 0 125).
To choose a value for exposure compensation, keep the E (N)
button pressed and rotate the command dial until the desired
value is selected in the viewfinder or information display.
–1 EV No exposure
compensation
+1 EV
E (N) button Command dial Information display
–0.3 EV +2 EV
+