Is there a "Consumer Reports" of flash/strobe photography that has done
standardized testing to sort all this out for us?

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Henry
> Posner/B&H Photo-Video
> Sent: Wednesday, October 24, 2001 10:06 AM
> To: [EMAIL PROTECTED]
> Subject: EOS Re: 550ex vs strobes
>
>
> Except these numbers can be "jazzed" much as stereo power amp output was
> before the government required them to standardize on RMS (and even then
> some rate their power into 4 amp loads and others into 8).
>
> A flash head can be designed to produce quite a high GN if the
> reflector is
> designed to produce a hotter center with relatively rapid falloff. Two
> flashes with the same w/s and similar circuitry & flashtubes but with
> different flash patterns will produce markedly different GN ratings.


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