Canon PowerShot Pro 90 IS User Guide

Page of 140
72   
Shooting - Selecting Particular Effects
   Locking the Flash Exposure Setting (FE Lock)
You can lock the flash exposure so that the exposure settings are correctly set for a
particular portion of your subject.
1
Set the built-in flash to   or 
.
• If you are using an externally mounted flash,
please refer to its manual for setting
instructions.
2
Center the subject on which you want
to lock the flash exposure setting in the
LCD monitor or viewfinder and press
the shutter button halfway to set the
focus.
3
Press the   button.
• The flash exposure setting will lock (FE Lock) and
the   icon will appear in the display panel and
LCD monitor or viewfinder.
• The flash will fire a pre-flash and lock the flash
exposure to the required intensity to illuminate
the subject. (Each time you press the   button,
the flash exposure locks at the required intensity
for that composition).
• Pressing any button other than the shutter
button cancels the FE lock.
4
Recompose the image and shoot.
• As the example to the left shows, a backlit
subject can be shot at the correct exposure if
the FE lock is set when the camera is aimed at
a non-backlit portion of the subject.
• This setting can only be selected in the  , 
 or 
  modes.
• The FE Lock only functions with the built-in flash or an externally mounted EX-series
Speedlite (p. 108).