Re: Sabbatier effect

[bcasselb@xxxxxxxxxxx (Bill D. Casselberry)]

  I checked in my "Encyclopedia of Photograpy" & found that this
  effect is a partial reversal, but not a true sloarization - which
  is obtained by enormous overexposure in which the curve peaks after
  the shoulder & then turns back down. Said to be quite difficult to
  actually achieve, in practice. The Sabattier Effect which we call
  solarization is done by removing the film from the developer, rinsing,
  exposing to a white light and then returned to the developer. The
  2nd exposure can only effect the undeveloped shadows, which then
  develop out to similar densities as the highlights. Middle tones are
  affected to varying degrees. There's other things in the literature,
  too -- all very interesting.
						 Bill

        http://www.orednet.org/~bcasselb
        bcasselb@xxxxxxxxxxx
 
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