Nikon D5100 Reference Manual page 15

White balance ensures that colors are unaffected by the color of the light source.
Auto white balance is recommended for most light sources; in P,S,A, and M modes,
other values can be selected if necessary according to the type of source:
Option
AUTO Auto
_ Incandescent
Fluorescent
_ Directsunlight
Flash
all. Cloudy
• _ Shade
PRE Presetmanual
Descriptio nO,_-3_,-o7 ................ _,==_
Automatic white balance adjustment. Recommended in most situations.
Use under incandescent lighting.
Use with the light sources listed on page 82.
Use with subjects lit by direct sunlight.
Use with the flash.
Use in daylight under overcast skies.
Use in daylight with subjects in the shade.
Measure white balance or copy white balance from existing photo (_ 84).
Place the cursor in the information display.
If shooting information is not displayed in the monitor, press the 4], button.
Press the 4], button again to place the cursor in the information display.
2
3
Information display ,B, button
Display white balance options.
Highlight the current white balance setting in
the information display and press _).
Choose a white balance option.
Highlight an option and press _). To return to
shooting mode, press the shutter-release button
halfway.
81