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Thank
you
for
purchasing
a
Canon
product.
The Canon Speedlite 580EX
II
is
an
EOS-dedicated, high-output flash
unit automatically compatible with E-TTL
II,
E-TTL, and TTL autoflash.
It can serve as
an
on-camera flash
as
well as a master unit or a slave
unit
in
a wireless, multiple-Speedlite system. It has the same dust- and
water-resistance
as
EOS-1 0 series cameras.
• Read
this
instruction
manual
while
also
referring
to
your
camera's
instruction
manual.
Before using the Speedlite, read this instruction manual and your camera's
instruction manual to familiarize yourself with the Speedlite operations.
• The
basic
operation
is
as
easy
as
with
normal
AE
shooting.
When the 580EX
II
is
attached to
an
EOS camera,
almost
all
automatic
exposure
control
for
flash
photography
is
handled
by
the
camera.
It
is
almost the same as using the camera's built-in flash if it has one.
You
can
think of the 580EX
II
as a built-in, high-output flash, but attached externally.
• It
becomes
automatically
compatible
with
the
camera's
flash
metering
mode
(E-TTL II, E-TTL, and TTL).
In
accordance with the camera's flash control system, the Speedlite controls
the flash automatically
in
the respective flash metering mode:
1.
E-TTL
II
autoflash (evaluative flash metering with preflash reading/lens
distance information)
2.
E-TTL autoflash (evaluative flash metering with preflash reading)
3.
TTL autoflash (off-the-film metering for real-time flash metering)
Regarding the camera's available flash metering modes, refer to the
"External Speedlite" specification
in
the "Specifications" of your
camera's instruction manual.
The camera instruction manual's chapter
on
flash photography will refer
to cameras having flash metering modes 1
or
2 as a Type-A camera
(compatible with E-TTL
II
or E-TTL). And cameras having flash
metering mode 3 (compatible with only TTL) are called Type-B
cameras.
* This instruction manual assumes that you are using the Speedlite
with a Type-A camera.
For Type-B cameras, see page 55.
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