I found a idea and want to ask your opinions.


  1. First of all lets solve making autochrome screen making problem without investing tens of thousands to patent blue dye.

  2. I am thinking to buy a very fine quality autochrome 3''X4'' plate , than remove its bw emulsion and contact copy the autochrome RRGGBB screen on to 4x5 negative color film.

  3. Than c41 develop the negative color film and secure the negative at somewhere.

  4. Next step is to build a Afghan Camera working with color negative paper..

  5. Lets take out our autochrome screen copied negative film and put it in front of afghan camera's lens.


Two big question ,

What would be the final image of negative paper. Would it be a positive ?

Mustafa Umut Sarac
Istanbul