Ok. Think I've got it.
So looking at the table - f8 and ISO 100 with the flash at full power
will illuminate correctly objects at a distance of 2.7m

thanks everybody!

Wendy

On Thu, Feb 28, 2008 at 11:30 AM, Igor Roshchin <[EMAIL PROTECTED]> wrote:
>
>  Wendy,
>
>  An alternative way of figuring out the needed f-stop for your flash is
>  as follows.
>  Look at the page 4 of the manual, "Table no.1":
>  http://www.pentaximaging.com/files/manual/AF220T_FLASH.pdf
>
>  Since K10D does not support "regular" TTL, the flash will fire at full
>  power. This means, that the you take the longest side of each range -
>  for the particular f-stop -- this would be the right distance for
>  this f-stop at ISO-100. At other ISOs - you multiply it by the factor
>  posted in "Table no.3" - or simply change by 1 f-stop for each ISO step.
>
>  HTH,
>
>  Igor
>
>
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>
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