Canon POWERSHOT S500 User Manual page 79

You can switch between metering modes to shoot.
Appropriate for standard shooting conditions,
including backlit scenes. The cameradivides images
into several zones for light metering, It evaluates
[] Evaluative complex lighting conditions, such as the position of
the subject the brightness, the direct light, and the
backlighting and adjusts the settings to the correct
exposure for the main subject.
Center- Averagesthe light meteredfrom the entireframe, but
[] Weighted givesgreater weight to the subject matter at the center.
Average
Meters the area within the spot AEpoint at the center
of the LCD monitor. Use this setting when you want
[] Spol to set the exposure on the subject in the center of
the monitor.
Press the [] button to switch
between metering modes.
Theselected meteringmodeappears onthe
LCDmonitor.
77