Canon 550EX Speedlite

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The 550EX is capable
of covering the area of an 17mm lens by the use of its built-in diffuser
panel.
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The flash head can
tilt down -7 degrees for better coverage of close-up subjects.
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AF assist when used
with the EOS 3 is multi-point.
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AF assist range
is 0.6 - 15 meters center point, 0.6 - 5 meters outer points (EOS 3).
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Rapid fire capability
is available with external HV power.
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Wireless
control capable (IR) with the ST-E2.
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Multi-flash E-TTL
capable with other 550ex units and ST-E2.
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Has "modeling flash"
function (199Hz) in DOF preview mode (EOS 3).
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Flash exposure bracketing
(FEB) capability with the EOS 3.
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6 custom functions:
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FEB cancellation
after completion (enabled or disabled)
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FEB sequence (0-+
or -0+)
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Flash metering system
(E-TTL or TTL)
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Slave unit SE mode
activation (after 60 minutes non-operation or 10 minutes)
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Slave unit SE mode
cancellation (by master unit for 1 hour or 8 hours)
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Modeling flash (enabled
or disabled)
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The power switch
has 3 positions:
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Off
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SE (On with save
energy function)
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On (On without save
energy function)
Official Canon USA page:
http://consumer.usa.canon.com/ir/controller?act=SupportDetailAct&fcategoryid=217&modelid=7270
Return to Canon EOS Speedlites page.