> "F. Craig Callahan" <[EMAIL PROTECTED]> wrote:
> ... So the question arises, can the 550EX (or the ST-E2) emulate the
> flash-control functions of the Elan 7/EOS 30 when used as a control
> unit for one or more 420EX units? Will a 420EX respond to the ratio
> commands transmitted by a 550EX in the same way another 550EX would?
> ... as it stands now I see few reasons to choose a 420EX over a 550EX
> as a second flash unit (and the ST-E2 doesn't seem cost-effective
> since you spend all that money and still have only a single light
> source).
Hi Craig,
I see what you mean. For anyone interested, I found a verbatim copy of
the Elan 7E brochure, complete with pictures scanned straight off the
brochure. Well, not completely straight, in some cases :-)
http://skyguys.org/photomedia/cameras/Elan7/Elan7%20Main.html
There are reasons why the 550EX is a better master than the ST-E2, but
price is not one of them.
Here's another perspective on the 550EX/420EX/ST-E2 choice and flash
ratio story (this time with the D30):
http://kelleytown.com/guide.html#portrait
Cheers
Julian Loke
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