David Mann wrote: >On Mar 1, 2014, at 10:46 am, steve harley <[email protected]> wrote: > >> on 2014-02-28 14:03 David Mann wrote >>> I might be getting somewhere... >>> >>> http://en.wikipedia.org/wiki/Paget_process >> >> yes, that is close; i found some samples of the Paget pattern, and it >> appears somewhat different from your slide, e.g.: >> >> <http://www.awm.gov.au/exhibitions/captured/colour/paget.asp> >> >> a bit of digging led me to Dufaycolor, whose pattern matches exactly, and >> which was in use later in the century (though 1951 still seems late); it was >> used for motion pictures too; from the name you'll find several references, >> but this was particularly instructive: >> >> <http://zauberklang.ch/filmcolors/timeline-entry/1257/> > >That looks like it. I had made a mental note to search for images of the >Paget pattern later but you've done it for me. You're right that the >Dufaycolor pattern matches. The description of the manufacturing process >seems to fit with the order of layers I observed. > >There are lots of PDFs linked towards the bottom of the page so I might have a >fair bit of reading to do. > >Much appreciated :) I owe you a virtual beer.
This is a really fascinating investigation! Would you like me to call my friend at the George Eastman House and see if they have any more information on this? -- Mark Roberts - Photography & Multimedia www.robertstech.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
