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Thread: film separation for printing Experience Workers

  1. #11
    Drew Wiley
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    Re: film separation for printing Experience Workers

    Sandy, he's been inventing various alt tweaks his entire career. Evercolor was just one of them. The last one I've heard about is large scale thermal printing on metal.

  2. #12
    Drew Wiley
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    Re: film separation for printing Experience Workers

    I dunno, Bob. If it were me, I'd be looking to adapt something modern, like inquiring about acquiring a master roll remnant of Arista Ortho Litho II. It's thin, but inexpensive and has the highly desirable property of a tiny amount of texture, designed to both suppress Newton rings and facilitate tight drawdown under a vac blanket. Unfortunately, I had to shift gears and break off con-tone experiments this past Spring. I'll probably start up again after the rains seriously begin. Since you're scanning anyway, you can adjust profiles and use an ortho product. I am personally interested in double-neg technique contacts. The actual color separations from color negs (interpositives) are done on TMY100, which is miserably expensive in 8x10. So it would be nice to have an affordable substitute for the subsequent final separation negative. Most of the con-tone work on this film so far seems to be rather amateurish and far from ideal in terms of developer choice. The nice thing is that it's available in a lot of cut sheet sizes for experimentation at least. So I don't know if this idea will turn out promising or not. But since I already keep on hand 8x10 sheets for hard highlight masking, it's going to be tempting to see if I can stretch its range of applications or not. The tricky part is the first step anyway - the actual separations on pan film. After that, things should be
    highly predictable, provided the characteristic curve can be tamed.

  3. #13

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    Re: film separation for printing Experience Workers

    Quote Originally Posted by bob carnie View Post
    Yes Contone or a film that will accept laser exposure like Ortho 25, and must be in current production and come in rolls... am I asking for the missing link?
    What you want is Kodak 4133. TMX in something fairly vigorous might not be far off - problem is the UV blocker on the poly base version.

  4. #14
    Drew Wiley
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    Re: film separation for printing Experience Workers

    Correct. TMX is not a good idea for UV printing; but it doesn't come in giant sizes anyway, even if that kind of option were affordable! But Arista Ortho Litho is engineered for UV exposure. It's now version 3; but the version 2 which I have on hand should be suitable for ballpark testing. It's about 3:1 more sensitive to blue light than to green. The problem is that everyone working with it con-tone can afford near-miss results, and have figured out how to use highly dilute Dektol for single images. Matched color separations impose a far more strict protocol of exposure and development. I work with CMY dyes, and don't have experience with CMYK, but will eventually get there. Kodak 4133 died off at the end of the Mesozoic, same time as the
    dinosaurs. So I wouldn't count on that option!

  5. #15

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    Re: film separation for printing Experience Workers

    Quote Originally Posted by Drew Wiley View Post
    Sandy, he's been inventing various alt tweaks his entire career. Evercolor was just one of them. The last one I've heard about is large scale thermal printing on metal.
    Looks like Nordstrom started this printing company back in 1997.
    http://www.laserlightprints.com

    Sandy
    http://www.sandykingphotography.com/
    For discussion and information about carbon transfer please visit the carbon group at Yahoo.
    [url]https://groups.io/g/carbon

  6. #16
    Drew Wiley
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    Re: film separation for printing Experience Workers

    Sandy, I suspect Nordstrom has a lifelong itch to explore and develop new color media, even if the commercial viability is often a long shot. I was stuck indoors today. Even though the closest horrible fire is 200 miles away, the wind flow is reverse and the smoke is blowing here to the coast. So I pulled out some lith sheets just to test my dubious advice to Bob. In this case, a 6x9 color neg was turned into 8X10 RGB interpositives, and today, those in turn into the respective RGB negatives by contact onto 8x10 Ortho lith film. I don't have time to fine tune the protocol yet, or tricolor print it, but it's apparently quite doable. In a couple of days I'll make a black and white print from the blue separation just for fun. But the thought of working on ultra-thin lith film in big roll sizes, with its horribly finicky response to dev temp and concentration at very short development times, well, that would be intimidating.

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