Canon 600EXII-RT, Инструкция по эксплуатации

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The FE (Flash Exposure) lock locks the correct flash exposure setting
for any part of the subject.
With <
a
> displayed on the LCD panel, press the camera’s
<
B
> button. For cameras without a <
B
> button, press the <
A
>
(AE lock) or <
7
> button.
1
Focus on the subject.
2
Press the <
B
> button
(
8
)
.
With the subject at the center of the
viewfinder, press the camera’s
<
B
> button.
X The Speedlite will fire a preflash and
the required flash output for the
subject is retained in memory.
X “ FEL ” will be displayed in the
viewfinder for approx. 0.5 sec.
Each time you press the <
B
>
button, a preflash will be fired and the
new flash output required at that time
is retained in memory.
7
: FE Lock
N
If a correct exposure cannot be obtained when FE lock is performed,
<
Q
> blinks in the viewfinder. Move closer to the subject or open the
aperture, and perform FE lock again. You can also set a higher ISO
speed and perform FE lock again when using a digital camera.
If the target subject is too small in the viewfinder, FE lock may not be
effective.