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  1. #1
    brian steinberger's Avatar
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    Anyone brewing up their own lith developers?

    I'm looking to start lith printing, and have a bunch of chems and was wondering if anyone has some recipies that I can follow to mix up my own two part lith developer. Thanks!

  2. #2
    Ian Grant's Avatar
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    There are a lot of Lith dev formulae on Unblinkingeye

    Ian

  3. #3
    Cor
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    Quote Originally Posted by Ian Grant View Post
    There are a lot of Lith dev formulae on Unblinkingeye

    Ian
    I almost always mix my own lith developer, it's the D-85 formula (see above link).

    I use it at 100 A + 400 B + 1000 water with good results

    Good luck!

    Cor

    Ps exchanging acetone for paraformaldehyde does not seem to work. And be very careful with the paraformaldehyde , it's toxic! (solute it at 50degC not much higher)

  4. #4

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    Quote Originally Posted by brian steinberger View Post
    I'm looking to start lith printing, and have a bunch of chems
    and was wondering if anyone has some recipies that I can
    follow to mix up my own two part lith developer. Thanks!
    At Google search for, wall's normal hydroquinone. Lots
    of formulas. I chanced upon a mix very similar to Wall's.
    No more than hydroquinone, sodium sulfite, and sodium
    carbonate. Ratios in that order 1:5:5. Multiply by 2,
    make that in grams, and dissolve it all in 1 liter
    of H2O. I've not tried that exact formula as
    my by chance brew deviated some. Good
    results in as few as 8 minutes. Dan

  5. #5
    Mike Wilde's Avatar
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    Yep, but with limited success

    So far, apart from high contrast D19 I have had limited success with my mix own from formulas lith efforts. I was substituting eqi-molar formalin solution for dry weight paraformaldehyde and there is a chemical (can't recall what) along for the ride in the formalin that keeps it from sedimenting into paraformaldehyde that I think was the cause for the set backs.

    My para order arrived in the mail last week, but I have not got back to the lith developer experiment yet. Silly things like making a living and being a good husband and parent have so far been the intrusions.

    I do have about 150 sheets of 8x10 and 100 sheets of 11x14 lith film (ortho, about asa 3) in the freezer calling for my attention though. I have a mate in a camera club I frequent that I recently did some electrical work for. So now when I get over to his place there is a fully functional 17x 21" or so process camera in the basement adjacent to his darkroom to play with the lith on.

  6. #6
    Ian Grant's Avatar
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    Mike if you use Formalin/Formaldehyde instead of the paraformaldehyde and mix the D85 as a one part developer it works brilliantly as long as you use this as Part A and mix 1+1 for use with a Part B of 5% NaOH or KOH solution. I know this works because I used it for many years as a graphic arts dev commercially.

    Ian

  7. #7

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    Any words on shelf life or tray life of home brews versus the proprietaries? Or do you mix this stuff only prior to use?

  8. #8
    Ian Grant's Avatar
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    Rich, all the Lith devs I've made up have had similar tray life to commercial lith devs.

    Ian

  9. #9
    Mike Wilde's Avatar
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    good advise

    Quote Originally Posted by Ian Grant View Post
    Mike if you use Formalin/Formaldehyde instead of the paraformaldehyde and mix the D85 as a one part developer it works brilliantly as long as you use this as Part A and mix 1+1 for use with a Part B of 5% NaOH or KOH solution. I know this works because I used it for many years as a graphic arts dev commercially.

    Ian

    Thanks - no problem on your approach to the part B- I keep a good sized bottle of 40% W/V NaOH around for my soap making efforts, so it is just a careful dilution, rather than waiting for the dry pellets/flakes to water route stuff to cool off.

    I was trying to do the A and B of high contrast D85's with the resulant sulfite formed by the formalin mixing not happening until A and B came together. The result was that there was no preservative in with the developer components. This relilzation came to me the day after I got zero results out of a day old from mixed develpoer I had compounded this way. That and the fact that A had turned green.

  10. #10
    nze
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    Hi

    I use Ansco 70 formula dilution from 1+1+6 to 1+1+20 with good result
    Chris Nze
    me Apug Portfolio
    Me web page

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