Thanks Tor, I got some interesting links.  I personally have lots of books
on the subject that goes into detail and formulations.  But the links are a
good addition.
Maan

"Tor Olav Kristensen" <tor### [at] onlineno> wrote in message
news:3A7B136B.F3770084@online.no...
>
> "Maan M. Hamze" wrote:
> >
> > I am going to study this further this weekend along with the inc file
that I
> > was refered to in this thread.
> > Maybe I can come up with a correlation between f-stops and Aperture.
The
> > f-stops are related mainly to control of depth of field.  Where one area
is
> > in focus with the background and foreground thrown out of focus.  Mainly
if
> > you focus on a point, one third of the line in front of the point and
two
> > thirds of it behind the point will be in focus (the line being the total
> > line in focus or the depth of field).  One other variable is the Hyper
Focal
> > setting where ALL is in focus to infinity.
> > so it will be some interesting work.
>
>
http://www.google.com/search?q=%22circle+of+confusion%22+%22depth+of+field%2
2+%22hyperfocal+distance%22
>
>
> --
> Best regards,
>
> Tor Olav
>
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok

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