Shooting With The Af Lock; Changing The Metering Method - Canon PowerShot SX150 IS User Manual

Shooting with the AF Lock

The focus can be locked. After locking the focus, the focal distance will not
change even when you release your finger from the shutter button.

Changing the Metering Method

You can change the metering method (brightness measuring function) to
match the shooting conditions.
Evaluative
Center
Weighted Avg.
Spot
88
Lock the focus.
Keep the shutter button pressed halfway
and press the q button.
The focus locks, and
indicator appear on the screen.
After you release your finger from the
shutter button, press the q button again,
then press the qr buttons or turn the 5
dial to choose
Compose the scene and shoot.
Choose the metering method.
After pressing the m button, press the
op buttons to choose
Choose an option.
Press the qr buttons or turn the 5 dial to
choose an option, then press the m
button.
The setting will appear on the screen.
For standard shooting conditions, including back lit shots.
Automatically adjusts the exposure to match the shooting
conditions.
Averages the light metered from the entire frame, but gives greater
weight to the center.
Only meters within the
the center of the screen.
. The focus will unlock.
(Spot AE Point frame) that appears at
and the MF
.