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FE (flash exposure) lock is the flash version of AE lock. With the 420EX
attached to the camera, the camera's AE lock button becomes an FE lock
button. With FE lock, you can lock the correct flash exposure reading for
any part of the picture.
Set the camera's Command Dial
to a Creative Zone mode.
Focus the subject.
• Press the shutter button halfway.
Aim the center focusing point on
the subject where you want to
lock the flash exposure reading,
then press the
<
*
>
button. (016)
~
In the viewfinder, the
<
*
> icon is
displayed.
~
The 420EX fires a preflash and the
required flash exposure is locked.
~
In the viewfinder, <FEL> is displayed
for 0.5 sec.
• Each time you press the <
*
>
button, a preflash is fired to obtain
the correct flash exposure which is
then locked.
• FE lock is canceled when the ( (16)
icon turns off or when the Command
Dial is turned.
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