Canon eos rebel t1i - Manual (Page 110)

110
A Setting Shooting FunctionsN
Each time you press the <B> button, the information display will
change.
About the Information Display
Magnifying frame
ISO speed
Shots remaining
Exposure level indicator/
AEB range
Aperture
Shutter speed
Picture Style
Battery check
Exposure
simulation
Drive mode
White balance
Flash exposure compensation
AF mode
·d : Live mode
·c : Face detection Live mode
·f: Quick mode
AF point (Quick mode)
AEB
FEB
Highlight tone priority
Histogram
Image-recording quality
AE lock
Flash-ready
When <g> is displayed in white, it indicates that the Live View image
brightness is close to what the captured image will look like.
If <g> is blinking, it indicates that the Live View image is not being
displayed at the suitable brightness due to low or bright light conditions.
However, the captured image will reflect the exposure setting.
If flash is used or bulb is set, the <g> icon and histogram will be
grayed out (for your reference). The histogram might not be properly
displayed in low or bright light conditions.