Adjusting the brightness of the image (Exposure, Flash compensation, Metering)
Shooting with fixed brightness (AE Lock)
When shooting into the sun or by a window, the exposure may not be appropriate for the subject because of the big difference in lighting between the subject and the background. In such cases, use the light meter where the subject is bright enough and lock the exposure before shooting. To reduce the brightness of the subject, point the camera forwards a spot that is brighter than the subject and use the light meter to lock the exposure of the entire image. To make the subject brighter, point the camera forwards a spot that is darker than the subject and use the light meter to lock the exposure of the entire image.
This section describes how to shoot a brighter image of the subject using the 
(Spot).
The spot where you lock the exposure.
function shooting the Using
1 Fn button t[Metering mode] t
(Spot)
2 Adjust the focus on the portion you want to lock the exposure.
The exposure is set when the focus is achieved.
83