Digital BW, The Print

C'mon guys, give it a rest...

Roger
  -----Original Message-----
  From: Anthony Atkielski [mailto:anthony@...]
  Sent: Thursday, May 22, 2003 12:53 PM
  To: DigitalBlackandWhiteThePrint@yahoogroups.com
  Subject: Re: [Digital BW] Digital, film, scanning comparisons


  Ernst writes:

  > In practice however the narrow band filters are
  > not that narrow ...

  They don't have to be.  The problem exists no matter how broad the
filtering
  is.

  > ... our eyes and brain are based on tri stimuli
  > as well (but a bit more complicated) ...

  That's why we cannot tell the difference between yellow and a mix of red
and
  green.  An alien species might wonder why we insisted that both were the
  same, when they could easily see the difference.

  > So that digital replication of the Tri X curve
  > will satisfy a lot of us ...

  It might.  But it is very important to understand that Tri-X cannot be
  _duplicated_ by any manipulation of RGB.  This is one of the fundamental
  notions that seem to escape many photographers, and as a result they reach
  all sorts of wildly inaccurate conclusions about what digital photography
  can or cannot do.



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