Nick Young wrote:
I am wondering if the ST-E2 would be a practical alternative to the 
combination of TTL Hot Shoe Adapter, Off-Camera Shoe Adapter and 
Connecting Cord.

I understand that both alternatives enable full ETTL functions with a 
550EX and EOS3 - can anyone confirm if either or both enable full 
ETTL between a 550EX and EOS 30?

The ST-E2 appears to be only slightly more expensive than the cord 
combination, but while the cord combination allows you to place the 
550EX anywhere the cord will reach, I am concerned that the ST-E2 
will require that the 550EX is within 40 degrees of the camera's 
straight-ahead line.  Would any user of the ST-E2 confirm that when 
it is mounted on the camera hot shoe, the IR beam emitter is fixed in 
position pointing forward?  Can the ST-E2 be rotated horizontally 
(like the flash head of a 550EX) so that the beam emitter points off 
to the side or back of the camera?

I am used to my off-camera flash being _behind_ the lens....
______________________________________________________________________

You already receive some good advice.  You can swivel the 550EX tso the
front faces the ST-E2 while the flash points at your subject.  The ST-E2 IR
beam points forward only, no rotation like the flash. E-TTL does work with
the ST-E2.
What are you planning to use it for?  Indoors? Outdoors? Macro shots?

Peter K
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