Auto Power Off - Canon Speedlite 470EX-AI Instruction Manual

Turning on the Power
Auto Power Off Function
To save battery power, the power will turn off automatically after approx.
90 sec. of idle use. To turn on the Speedlite again, press the camera's
shutter button halfway or press the test flash button (flash-ready lamp).
When set as the receiver unit for optical transmission wireless flash
shooting (p.72), the time until auto power off takes effect is approx. 60
min.
Lock Function
By setting the power switch to <a>, you can disable the flash's
button and dial operations (except the <X> switch operation). It is
useful when you want to prevent the flash function settings from being
accidentally changed after you set them.
If you operate a button or dial, <k> is displayed on the LCD panel.
LCD Panel Illumination
When a button or dial is operated, the LCD panel illuminates for approx.
12 sec. (p).
During normal flash photography, the LCD panel illuminates in green.
When set as a receiver unit during optical transmission wireless
shooting, the LCD panel illuminates in orange.
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