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  1. #1

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    "silver out" ... but how ?

    is it possible to MAKE a (rc) paper "silver out" ?
    what is it caused by ?

    thanks

    john
    ask me how ..

  2. #2

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    John, if you're referring to the "silvering out" appearance in antique prints, it is due to degradation of the image from long-term exposure to atmospheric contaminants. Not easy to duplicate, at least not in our lifetimes. There may be some other means of creating that look, but I'm not aware of it.

    Peter Gomena

  3. #3

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    I think there is a toner that produces a metallic silver look to the image. Not sure the name of it, though.

  4. #4

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    hi peter

    i had made some rc prints years ago and within a year of making them
    they seemed to have that same appearance ... no one was a heavy smoker,
    the prints were not in a factory or contaminated atmosphere.
    maybe it was something else, and not what i was told ... but it did have the appearance
    that part of the print had somehow converted to a metallic surface - sheen.

    it was kind of weird and i kind of liked it

    maybe i can find a toner that will do the same sort of look ...

    thanks for the info!

    john
    ask me how ..

  5. #5

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    I just posted some information related to this in another thread:

    http://www.apug.org/forums/forum40/6...tml#post796455

  6. #6

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    thanks oren!

    john
    ask me how ..

  7. #7

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    Okay, yes, I've seen that happen with RC prints too, kind of a metallic bronzing that is more or less visible depending on how light hits it. Beats me - there are a lot of people weighing in on this forum that know more about the properties, chemistry and longevity of RC prints than I do. I really only use it for contact proofs and quick test prints.

    Peter Gomena

  8. #8
    Ian Grant's Avatar
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    Rockland Colloids make a Toner called Halo Chrome that gives a mirror like finish to a B&W print. I've never used it but it's been around since at least the mid 70's when I last bought from them. This will most like be the tone Photone is thinking of.

    Ian

  9. #9

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    ian and phototone,

    thanks!

    john
    ask me how ..

  10. #10
    Marco B's Avatar
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    I recommend you to read this document that I have added to the Books section of the Links section of APUG:

    PHOTOGRAPHS FROM THE 19th CENTURY: A process identification guide
    By William E. Leyshon


    Book section of APUG:
    http://www.apug.org/portal/?id_category=93
    Scroll down in the book section and click on the link to find it.

    There is a reference to these issues with silvering and also some literature references for some further reading.

    Marco
    My website

    "The nineteenth century began by believing that what was reasonable was true, and it wound up by believing that what it saw a photograph of, was true." - William M. Ivins Jr.

    "I don't know, maybe we should disinvent color, and we could just shoot Black & White." - David Burnett in 1978

    "Analog is chemistry + physics, digital is physics + math, which ones did you like most?"

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