Specifications

Basic
Wireless
E-TTL
Autoflash
Operation
0
(2)
Camera
operation
Set
the
camera
for
normal
flash
operation.
i
With
the
EOS-3,
make
sure
the
ST-E2's
flash
ratio
control
lamp
is
off.
(If
necessary,
press
the
<
RATIO
>
button
to
turn
it
off. )
If
the
flash
ratio
control
lamp
is on,
the
Speedlite
may
not
fire
or a
correct
exposure
may
not
be
attained.
After
turning
off
the flash
ratio
con-
trol
lamp,
set
the
main
switch
to
<HOLD
> to prevent
the
flash
ratio
control
lamp
from
light-
ing
inadvertantly.
8:1
.
4:1
.
2:1
.
1:1
IIIIIII
(3)
Checking
the
ST-E2's
pilot
lamp
and
slave-
ready
status
(4)
Wireless
operation
test
Press
the
ST-E2's pilot
lamp
(which
also
functions
as a
test
transmission
button).
r
If everything
is
OK,
slave
A will
fire
followed
by
slave
B
(at
l/64
output).
.
If
the
slave(s)
does
not
fire,
reposi-
tion
the
slave's
angle
or distance
toward
the
ST-E2
and
test
it
asain.
When
the
ST-E2's
pilot
lamp
lights
and
the I
icon
lights
in
the
camera
viewfinder.
thev
indicate
that
the
Sf-'nZ
is
ready
for
remote
transmission.
They
do not
indicate
that
the
slave
is
ready
(recharged).
.,.t:
ffi
ffi
Check
that
the
ST-E2's pilot
lamp
is
on
and
that
the
slave
is readv.
o
When
the
slave
is ready
to
firei
its
AF-assist
beam
emitter
flashes
at 1
Hz.
-/-\-
\/
PILOT
-#rdi :i&, .diffi&*.
.
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.
27
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