settings for fill in flash -30D AND 580EX

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Harold Silber - 22 Mar 2008 22:11 GMT

Good day

When using the flash in sunlight for people shots at a party etc , should I
use the ''high speed sync'' flash so that I can use a faster shutter speed?
In programme mode with normal flash, the shutter speed is always around
about 1/125.

Thanks

Harold

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Joel - 22 Mar 2008 22:51 GMT

> Good day
>
> When using the flash in sunlight for people shots at a party etc , should I
> use the ''high speed sync'' flash so that I can use a faster shutter speed?
> In programme mode with normal flash, the shutter speed is always around
> about 1/125.

You just need to use either "AV" or "TV" mode then the flash will be
filled.

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Robert Coe - 23 Mar 2008 14:27 GMT

: Good day
:
: When using the flash in sunlight for people shots at a party etc , should I
: use the ''high speed sync'' flash so that I can use a faster shutter speed?
: In programme mode with normal flash, the shutter speed is always around
: about 1/125.

If you have flash enabled, the camera will refuse to use any shutter speed so
fast that the first curtain has started to close before the second curtain has
finished opening. On my XTi that's anything over 1/200 sec.; on the 30D, which
is a bit older, the limit may very well be 1/125. So make sure the camera's
settings allow it to stop down enough to compensate for the slow shutter
speed, and pay attention to the warning lights.

Note that this effect has nothing to do with the speed of the flash, only with
the fact that the shutter must be fully open when it fires.

Bob

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Deadeye - 28 Mar 2008 12:52 GMT

>If you have flash enabled, the camera will refuse to use any shutter speed so
>fast that the first curtain has started to close before the second curtain has
[quoted text clipped - 7 lines]
>
>Bob

What the hell are you talking about? You don't have a clue at all, yet
here you are spouting off like you are an expert or something. The 30D
sync speed is NOT 1/125, nothing in the Canon line is. It is twice the
camera of the XTi, even if it is a "bit older".

The 30D, and even your XTi piece of plastic crap, can sync with a
580EX at *any* shutter speed. That was what the OP was asking in the
1st place, high speed sync. Read a little more, maybe run off to
Wikipedia and learn something. Or even read your manual, it's in there
too.

Dumbass.

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