----- Original Message ----- 
From: "Kostas Kavoussanakis"
Subject: Re: Optio S4 - first impressions


> On Tue, 2 Dec 2003, William Robb wrote:
>
> > >From Bill's bag of tricks:
> >
> > 1) Use a Pentax dedicated auto flash.
> > 2) turn on flash and camera (in auto).
> > 3) set f/stop as per guide on flash.
> > 4) compose, focus and shoot.
>
> How do you do 3 before 4? Doesn't the f stop depend on distance?

Flash output depends on distance. That is what auto flash units do. They
measure the amount of light bouncing back from the subject and quench the
flash when appropriate.

William Robb

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