Pentax K-7 Operating Manual page 32

Understanding Color Balance
Distribution of color intensity is displayed for each color in the RGB
histogram. The right side of the graphs look similar for images that have
white balance adjusted well. If only one color is lopsided to the left, that
color is too intense.
_: Setting the White Balance (p.191)
The following indicators appear on the monitor to indicate the keys,
buttons and e-dials that can be operated at that time.
Example:
• Four-way controller (•) MENU button
• Four-way controller (•) _ OK button
• Four-way controller (•) (_ Green button
1_ Four-way controller (1_) _ AE-L button
.-_,. Front e-dial _ "_ button
",,.'_,,: Rear e-dial Shutter release button
If the camera is held vertically while measuring the
brightness, the control panel/status screen is
displayed vertically. The directions of the four-way
controller (A • • 1_) also change to match the
orientation of the camera.