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Choose a flash control mode for the built-in and optional flash
units.
Flash Control
1 TTL
Flash output is adjusted automatically in response to shoot-
ing conditions (TTL flash control).
2 Manual
Choose a flash level between
Full
and
1/32
(
1
/
32
of full power). At full
power, the built-in flash has a guide
number of about 5/16 (m/ft, ISO
100, 20 °C/68 °F; at ISO 160, the
guide number is about 6.3/20.7).
A Y icon flashes in the display
during flash photography when
this option is selected.