OK. But assuming both flashes have the same shape, say for a 24mm lens,
what w sec corresponds roughly to the T 32? Or to put it another way, how
many w sec does the T 32 produce?
Gregg
>
> On Wed, 1 Mar 2000, Gregg Iverson wrote:
>
> > It would be fun to try that much flash power. BTW, what is the
> > relationship between watt seconds and guide numbers. I don't believe I
> > have ever seen a comparison given.
>
> It's not straightforward enough for a straight comparison. Watt seconds
> (or Joules) is a measure of the energy of each flash, the guide number
> also depends on the shape of the beam.
>
> --
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