Speedlite transmitter st-e2 (sold separately) – Canon 550EX User Manual

Page 76

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• Speedlite Transmitter ST-E2 (Sold separately)

Speedlite Transmitter ST-E2 serves as the master unit for wireless Speedlite

550EX control. It can control up to two slave unit groups (A and B). It is
attached directly to the camera’s hot shoe. As a master unit, the differences
between the 550EX and Speedlite Transmitter ST-E2 are listed below.

Wireless Functions Unit

550EX

ST-E2

E-TTL autotlash

O

O

High-speed sync

o

o

FE lock

0

0

Flash exposure compensation

o

X*

FEB (Flash exposure bracketing)

0

X

Flash ratio control/Group control

O/A, B,C

0/A.B

Manual flash mode

o

X*

Stroboscopic flash

o

X*

Second-curtain sync

X

X

Modeling flash

o

O

* Settable with the slave unit.

For details,

see the Speedlite Transmitter

ST-E2 Instructions.

1^ When using the Speedlite Transmitter ST-E2 with a Type-A camera, also read pages 112

L|l to 125.

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