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420EX Speedlite
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420EX Speedlite : How to turn the Speedlite flash on and off.
Article ID: ART123284
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Date published: 05/12/2015
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Date last updated: 08/17/2015
Description
How to turn the Speedlite flash on and off.
Solution
The main switch has the following settings
Turns off the power
Turns on the power
After 90 sec. of non-use, the SE (Save Energy) mode take effect automatically to turn off the 420EX and save battery power
To cancel the SE mode, press the test firing button
SIMS Doc Id
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