User Manual

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niaM = flash
Speedlite 580EX II
hsalf lliF =
Speedlite 580EX II
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A
B
B
niaM = flash
Speedlite 580EX II
hsalf lliF =
Speedlite 580EX II
7
Moving a Speedlite off camera is a reliable, simple way
of taking even more control over lighting. Changing
the angle from which you illuminate your subject can
dramatically alter the look and feel of a picture,
conveying a message or enhancing a mood.
A number of Speedlites in the range feature wireless
ash control. They can be positioned off camera and
red using one of two methods: radio-frequency
triggering or optical ash control, using bursts of visible
or infrared (IR) light. Optical triggering uses either an
ST-E2 Speedlite Transmitter mounted on camera, an
Integrated Speedlite Controller (on selected EOS models)
or a 580 EX II or 600EX/600EX -RT Speedlite
tted to the camera’s hotshoe.
Radio triggering offers greater range (maximum of
30 meters) and reliability, with no direct line of sight
required between ash and camera. This allows
speedlights to be postioned behind objects or around
corners, for even more creative lighting possiblities. The
Speedlite 600EX-RT features a built in radio-frequency
transceiver and may be controlled and red using the
hot-shoe mounted Speedlite Transmitter ST-E3-RT, or a
second 600EX-RT gun.
E-TTL II ash metering calculates correct exposure even
when ashes are used off camera, leaving you free to
concentrate on shooting great pictures.
Remote control Shooting
The wireless link between EOS and Speedlite can also
be used the other way around: Remote Control Shooting
allows photographers to wirelessly re their cameras.
The Speedlite 600EX-RT and radio-frequency Speedlite
Transmitter ST-E3-RT allow Remote Camera Control over
distances of up to 30m.
Adding more ashes
Working with multiple off-camera ash units is as
simple as working with one, but offers many more
opportunities for creative lighting solutions. Position the
units where they need to be and control them all with a
single Speedlite Transmitter. E-TTL II metering looks after
exposure and makes combining ash and ambient light
quick and simple.
The power output of the remotely positioned Speedlites
doesn’t have to be identical. Flash units can be adjusted
individually, either from the camera or by making
specic changes to each Speedlite unit.
Up to 15 Speedlites can be red from a single controller,
and units may be up to camera when using the RT
based system. Speedlites can also be grouped together,
with up to ve groups supported from a single Speedlite
Transmitter ST-E3-RT. The power ratio between groups is
adjustable on the Speedlite controller.
Off-camera ash
ST-E3-RT
LCD panel
= Main ash
Speedlite 580EX II
= Fill ash
Speedlite 580EX II