Nikon D7000 - Manual (Page 275)

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U
Use the multi selector to create a copy with modified color
balance as shown below. The effect is displayed in the monitor
together with red, green, and blue histograms (
0 167) giving
the distribution of tones in the copy.
Color Balance
G button
➜ N retouch menu
Increase amount of green
Increase amount of blue
Create retouched copy
Increase amount of amber
Increase amount of magenta
A
Zoom
To zoom in on the image displayed in the monitor, press the X button.
The histogram will be updated to show data only for the portion of the
image displayed in the monitor. While the image is zoomed in, press
the
L button to toggle back and forth between color balance and
zoom. When zoom is selected, you can zoom in and out with the X
and W buttons and scroll the image with the multi selector.