My 550EX has a power plug near the base, I wouldn't know what kind of
connector it's called though. I just ordered rechargable lithium-ion AA
batteries since I don't want to carry around a battery pack. I think
"off-camera terminal" may refer to PC socket ability?
According to Canon's site you can hook up Transistor Pack E or Compact
Battery Pack CP-E2:
http://www.usa.canon.com/camcambin/cameras/speedlite/550exspec.html
The boneheads apparently don't have specs for the 420EX up yet.
----- Original Message -----
From: "Ken Durling" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, February 09, 2001 12:19 PM
Subject: EOS External flash power 420 vs 550 EX
> Greetings -
>
> I just got my 420EX from B&H, and I'm looking forward to seeing how it
> works. I'm a little miffed at myself that I didn't see in the specs
> that it won't take external power. But I just went back and checked
> ther B&H entry and I saw that it said "Off-camera terminal = No" so I
> figure that is it. But then I went and checked the 550EX and it says
> the same thing. Now the 550EX *must* be able to take a power pack,
> right? So this is not the spec, and the ads *don't* really tell you?
> I'm confused. I was planning on getting a 550EX eventually anyway and
> moving the 420 to slave status, but I do wish I'd known about the
> external power issue. If "off-camera terminal" is not external power,
> where in the specs does it say that a pack can be used? For both
> flashes under "Power source" it only says "4 AA batteries." And what
> *is* "off camera terminal?"
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