Pentax Optio W90 Operating Manual page 149

• In (Digital Microscope) mode, light turns on regardless of whether
the setting is turned on or off.
• If the Power Saving is set to on, the light turns off after the set time.
• The macro lights turn off during playback and when using the USB
connector except when outputting video in Digital Microscope mode.
If the Self Timer and Remote Control are set in the drive mode, then the
Self Timer lamp and the 3 LEDs for macro photography are:
Macro Light is P (Off): The macro light and the Self Timer lamp blink
when counting down.
Macro Light is O (On): The macro light stays on when counting down.
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