--- James McCauley <[EMAIL PROTECTED]> wrote:
> > From: Gary Fisher <[EMAIL PROTECTED]>
> > Subject: EOS 550EX Flash Compensation
> >
> > I've just replaced my 540EZ speedlite with a
> > 550EX. Flash exposure compensation on the 540EZ
> > was in 1/3 stop increments. On the (my) 550EX
> > it's in 1/2 stop increments.
> >
> > I'd prefer to use 1/3 stop values, but I can't
> > figure > > out why there is this difference
> > between the two models.
> > Gary Fisher
> Hi Gary,
> Just checked my 550EX and it reads 1/3 stop
> increments both on and off cameras, with an EOS 3
> & 5. Maybe your flash somehow 'thinks' its on a
> lower range body. I'd get it checked if I were you.
>
I got to thinking about this. I realized that when I
first set FEC on the speedlite it was on the camera. I
thought maybe it had picked up the 1/2 stop settings
the body used and stuck with that, regardless of
whether it's on or off the body.
I took the batteries out of the flash, and let it sit
for 5 minutes or so (the manual says the flash can
"remember" settings when changing batteries for a
minute or so). When I turned the flash on, I set FEC
on the speedlite, and lo: it went in 1/3 stop
increments.
This remained the case when mounted to the body,
powered off/on and all sorts of combinations. I even
removed the batteries again, and tried to get the 1/2
stop back (not that I want them but....). Anyway the
flash has obviously decided it likes 1/3 stop
increments and I'm not complaining. Still I find it
odd.....
Regards
Gary Fisher
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