Canon EOS 90D DSLR Camera with 18-135mm Lens - Manual (Page 169)

169
Flash Function Settings
Flash Firing
Set to [
a
] (in Basic Zone or <
d
> modes)
to have the fl ash fi re automatically, based
on shooting conditions.
Set to [
D
] to have the fl ash always fi re
when you shoot.
Select [
b
] (in Creative Zone modes) to
keep the fl ash off , or if you will use the AF-
assist beam.
E-TTL II Flash Metering
M
Set to [Eval (FacePrty)] for fl ash metering
suitable for shots of people.
Continuous shooting speed for [
o
] will
become slower than when [Evaluative] or
[Average] is selected.
Set to [Evaluative] for fl ash metering that
emphasizes fi ring in continuous shooting.
If [Average] is set, the fl ash exposure will
be averaged for the entire metered scene.
o Even with setting [Eval (FacePrty)] , the expected result may not be obtained
depending on the shooting conditions and subject.
Red-eye Reduction
Set to [Enable] to reduce red-eye by
emitting the red-eye reduction lamp before
fi ring the fl ash.