> Date: Fri, 20 Apr 2001 10:24:50 -0400
> From: Henry Posner/B&H Photo-Video <[EMAIL PROTECTED]>
> Subject: EOS Re: softbox for 420EX
>
> >Henry,
> >light will come from many different angles and directions
> >when the light source is bigger. I think that's what he
> >meant.
Exactly. I said that in detail when I pointed out that
it is the size of the light source in relation to the
subject two sentences later.
You find schemes of that on my studio guide page at
http://www.photoquack.de/tutorials/diylights.htm
> Maybe there's some semantic issue that I am missing, but I still
> respectfully disagree. A softbox produces a soft, diffused directional
> light, an umbrella a soft, diffuse but less directional source.
Absolutely correct.
> With either, the closer the source is to the subject,
> the softer the light will seem because the source is
> LARGER in relation to the subject.
That is exactly what I wrote just two sentences later.
> A 60" umbrella 25' away (with a sufficiently strong flash
> tube within) will be a harsh and unflattering as any
> other point source (like the sun) because in relation
> to the subject it's point-sized.
Which is exactly why those small Lumiquests et al
do little more but drain ones pockets. Closing in
they make sense, but already taking portraits with
a 135 mm telephoto results in different shades in
the background but very little or no difference in
the face of your subject. Try for yourself.
> The size of the light source relative to the
> subject determines how soft the source will
> appear.
Exactly.
> Scattered light, by it's nature will be more diffuse
Yes. On the other hand if there is direct light, the
amount of scattered light does little to add to the
exposure, because it is very weak in comparison to the
direct light.
> but unless the issue is that we're using different
> words for the same concepts,
Yep. I'm no native speaker, sorry.
> size, not direction is the determinant factor.
<g> Size *does* matter!
--
Michael Quack <[EMAIL PROTECTED]> http://www.photoquack.de
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