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  1. #1
    gandolfi's Avatar
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    toning Cyanotype (wrongly!!)

    just finished three weeks of summer courses in photography:rolleyes:

    in this last one, we made mostly cyanotypes, but also liquid emulsion was used.

    I taught in doing these images, and a lot of fine images was made.

    however, as I am only one person, I can't be several places in one time, and at the fianl day, I noticed some toned cyanotypes, that looked strange...

    I can safely say, that it was the greenest cyanotypes I have ever seen, and I curiously asked the author how she obtained that tone......

    Happily she answered, that she just toned them over on out new photohouse, and that the result was a surprise to her also.
    She thought they'd turn out brown.....

    SO, instead of using soda - tannin - tea and so on, she had bleached, and browntoned these images, thinking they were images made of liquid emulsion.........

    my question here: was that a good discovery, or a real bad one.....?

    I mean, I have no ida what happens chemically, when a cyanotype is treated with conventinal bleach/browntoner (and actually she also dipped them in selenium).

    the results looked good.

    but ?

  2. #2
    Guillaume Zuili's Avatar
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    Do you have any pictures to show these strange results ?

    :-) :-) :-)

  3. #3
    gandolfi's Avatar
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    I am sorry, but no.

    the woman was so ashamed over her wrong doing, that she took down the images and left...........

    (I think I can remake the tones - I know what she did. as long as it is not too dangerous ...)

  4. #4
    daleeman's Avatar
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    As you mentioned before (Tea) I've had some nice results using tea for toning.

    I also tried disolving "Mike & Ike" candy... the red ones into water and made a nice red bath, but they did not really work well. But the prints smelled real tasty. The Mike & Ike candy coloring worked with gum printing I found.

  5. #5

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    My cyanotypes are toned with Tannic acid and Borax. I put them in a solution of tanic acid for less than a minute,10-30 sec will do, then wash and put in Borax solution to tone them a purple brown. The amounts of tannin and borax in the solution are forgiving and try what ever works,experiment. I have seen where the print is to be put in borax or carbonate solution first then tannic acid but found reversing these steps to be much more effective.

  6. #6
    Falkenberg's Avatar
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    Do any of You have tried to tone using food colouring ?
    If a man does not keep in step with his fellows it may be because he hears a different drummer... Thoreau



 

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