Canon PowerShot D20 - Manual (Page 102)

Image Brightness (Exposure Compensation)
102
Adjust the metering method (how brightness is measured) to suit shooting
conditions as follows.
Press the m button, choose in the menu,
and choose the desired option (p. 41).
X The option you configured is now displayed.
Press the m button, choose in the menu,
and choose the desired option (p. 41).
X The option you configured is now displayed.
Changing the Metering Method
Still Images
Evaluative
For typical shooting conditions, including backlit shots.
Automatically adjusts exposure to match the shooting conditions.
Center
Weighted Avg.
Determines the average brightness of light across the entire image
area, calculated by treating brightness in the central area as more
important.
Spot
Metering restricted to within the (Spot AE Point frame),
displayed in the center of the screen.
Changing the ISO Speed
Still Images
COP
Y