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Pi
57
Custom Functions
1_7
P IIIII[
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7F
Custom Function Settings
Function
Custom
Setting
Description
Function
No,
No
FEB
cancellation
after
completion
C.Fn-1
0
Enabled
1
Disabled (FEB continues)
FEB sequence
C.Fn~2
0
Correct
exposure,
decreased
exposure,
increased
exposure
1
decreased
exposure,
correct
exposure,
increased
exposure
Flash metering system
C.Fn-3
0
E-
TTL autoflash
1
TTL autoflash
0
With
E-TIL
autoflash,
fire
at
full
output
Test firing button
C.Fn-4
With
manual
flash,
fire
at
the
set
output
1
Uniform modeling flash
Wireless slave control
C.Fn-5
0
Slave
Conly
1
Slaves
A,
B,
and C
Modeling
flash
with
flash
ratio
C.Fn-6
0
Enabled
1
Disabled (Depth-of-field preview)
Power
source
for
flash
charging
C.Fn-7
0
Internal power + External power
1
External power only
C.Fn-4:
Setting
this
to
"1"
will
have
the
flash
heads
fire
the
modeling
flash
fire
at
the
same
output
with
all
EOS
cameras.
If
both
flash
heads
have
been
set
to
fire
with
autoflash,
both
flash
heads
will
fire
the
modeling
flash
at
the
same
output.
In
the
manual
flash
mode,
the
modeling
flash
will
be
fired
at
the
flash
ratio
set
manually.
C.Fn-5:
When
this
is
set
to
"1",
slave
units
whose
10
is
A
or
B
will
fire
as
part
of
the
same
slave
group
as
flash
tube
A
or
B
respectively.
C.Fn-7:
When
an
external
power
pack
is
used,
the
flash
unit
uses
both
the
internal
and
external
power
sources
to
recharge
the
flash.
However,
the
internal
power
source
may
become
exhausted
sooner
than
the
external
power
pack,
preventing
the
flash
from
firing.
By
setting
this
Custom
Function
to
"1,"
the
flash
unit
will
use
only
the
external
power
pack
to
recharge
the
flash
so
that
the
internal
power
source
will
last
longer.
(The
focusing
lamp
is
always
powered
by
the
internal
power
source.)
O·
Witha Type-A cartlera, theC.Fn-3-1'setting wiUnQt enable wireless operation
with autoflash. .
•
With
the
E()§D30carnera,
settingy.Fn-:3-1
will'
disable
the
flash.
-If,
C.
Fn-5-1
i~
set, you cannot have only
oneflashtljbefiring.
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regargle$~ofth.~·.'C;Fn-3.',settinQ.
65