Hello

  I know of a way of producting color images directly on glass plates
  called "autochrome". Been invented at the beginning of the century by the
  Lumieres, the following site
  (http://www.institut-lumiere.org/francais/lumiere/sautochrome.html) explains
  --in french-- the development of this technology (based on colored potato
  starch grains) to obtain a means of capturing color without the 3 filtered
  exposures. As explained on the page, the image is a *positive*.

  or go there: http://www.bway.net/~jscruggs/index3.html and choose 'autochrome'
  in the left menu.
 
        In France, the Albert Kahn Foundation has apparently a
  collection of 72 000 autochromes, done between 1910 and 1931, recording
  various subjects from the whole world, and especially France, in the
  followin areas: everyday life, habitat, industry, military, war
  etc...on command by A.Kahn (a banker and philanthroper in the XIXth
  century). It can be visited, but only on arrangement.

  From the few that I have seen, grain is quite perceptible, but the colors
  show no shifting (or wrong dominant) AT ALL, though they have sort of a
  pastel-like softness, which for a 100-year picture is quite a remarkable
  performance.

  
  I think later there was color film (movies) based on the same
  kind of materials. 
  
cheers.

Fabrice


>>>>> "Robert" == Robert Harris <[EMAIL PROTECTED]> writes:

    Robert> Shel Belinkoff wrote:
    >> 
    >> The US Library of Congress just put up a web site of the
    >> Prokudin-Gorskii photograph collection of Imperial Russia. These are
    >> some pretty amazing photographs,  made all the more amazing by the
    >> technique that he used - doing color separations by hand.

    Robert> Amazing is right. I've been to a couple of the places he photographed.
    Robert> One of these days I will have to dig out my slides and see how they
    Robert> compare to his. :)


    Robert> Shel (or anyone):

    Robert> Do you know if anyone else ever made color images from glass plate
    Robert> negatives before. Or since?

    Robert> Bob




-- 
Fabrice Gambérini
  -- = Wavecom S.A. = -- 
Email: [EMAIL PROTECTED]

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