Re: [Leica] Ortho-chromatic film

[Jerry Lehrer <jerryleh@pacbell.net>]

Pat

I am a highly qualified photographer, and I know that you
can't get something for nothing.

I do not own a scanner of any kind.

Jerry

Patrick Jelliffe wrote:

> Jerry,
>
> With all due respect, if you don't even know how to
> scan your old chromes, how can you make a comment like
> that?
>
> Regards,
>
> Patrick
>
> --- Jerry Lehrer <jerryleh@pacbell.net> wrote:
> > Martin
> >
> > You are correct.  I cannot understand how a
> > sophisticated,
> > experienced photographer could ask that question.
> >
> > Jerry
> >
> > Martin Howard wrote:
> >
> > > Slobodan Dimitrov wrote:
> > >
> > > > Anyone know what adjustments in PS, or any other
> > software, can be used
> > > > to turn an image taken with ortho film into one
> > that simulates the
> > > > tonality of pan-chromatic emulsions?
> > >
> > > If I understand correctly, orthochromatic film
> > captures less spectral
> > > range than does panchromatic film.  Since PS can
> > only work with what
> > > you give it, short of "inventing" new pixels, I
> > don't see how ANY
> > > manipulations in PS could turn orthochromatic
> > images into panchromatic
> > > images, because you don't know the reflective
> > properties of the objects
> > > in the scene with regard to the range of
> > frequencies that the ortho
> > > hasn't captured.  While you might be able to make
> > some educated
> > > guesses, and locally adjust contrast accordlingly,
> > I doubt you'd be
> > > able to results which are "the same".
> > >
> > > M.
> > >
> > > --
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> >
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