Alternative Developers - Coffee and all

Discussion in 'Alternative Processes' started by titrisol, Aug 26, 2004.

  1. titrisol

    titrisol Member

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    Coffee is a very usable photographic developer for film and paper.
    Research carried out @RIT showed that coffee, mint leaves, tree bark and othe rplant extracts were suitable for the purpose.

    Shutterbug ran an article in it's September 2003 issue which sparked the interest of some people @the photo.net community.
    http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=003aPB


    The recipes that were developed then were ccalled Caffenol or Folgernol and included sevral variations of the original.

    RECIPES
    Basic Caffenol from the article:
    8oz water 4tsp instant cofee 2tsp Na-Carbonate

    Caffenol Plus Caffenol + 1 tsp table salt

    Caffenol LC (low conrast for mini-film) by Donald Quails
    8 oz water, 2tsp coffee, 2tsp carbonate

    Bob Fowler has printed some great pics using J&C Classic 200,
    I have tested it in FP4+, APX100/400, Arista.EDU 400
    Don Quails has tested it in document film (microfilm)
     
    Last edited by a moderator: Aug 29, 2004
  2. titrisol

    titrisol Member

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    Donald Quails wrote:
     
  3. John Koehrer

    John Koehrer Subscriber

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    Decaf or not? Seems pretty alternative to me. Need some now!
     
  4. titrisol

    titrisol Member

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    I have only tested the normal instant coffee.
    The folger's crystals are reccommended but I bought Harris-teeter brand instant coffee and it worked as well.

    According to the research carried out by Don Qualls, decaf should work to, since the main developer agent is caffeic acid and the tannins in coffee.
     
  5. modafoto

    modafoto Subscriber

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    Will espresso increase contrast? And is steamed milk affecting the tonal curve?
    :tongue:
     
  6. titrisol

    titrisol Member

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    I decided to test Caffenol-c tonight...
    500 ml of water (for 120)
    1 gram Vitamin C
    4 teaspponns washing soda
    8 teaspoons instant coffee

    I tested it on J&C Pro 100 film, exposed at approx 100 (I giuessed most exposures) for 25 minutes

    The negatives look pretty good, the stain is there but les pronounced than my previous test that required longer times (30-45 minutes)
    I think that some 10-15 extra minutes would increase the stain and improve the shadow density

    I'll try to scan the negatives in a flat bed and let you know what happens
     
  7. sanking

    sanking Restricted Access

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    Human urine contains the toxic benzene known as pyrocatechin and can be formulated as a photographic developer for film and paper.

    Possibly a cheaper and more effective alternative to caffenol?

    And can most likely be made super-additive with daily ingestion of Vitamin-C?

    Sandy
     
  8. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member

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    I think that post needs to be ported over to the "favorite beer" thread.
     
  9. Ed Sukach

    Ed Sukach Member

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    Hah!! I've got to remember this ... I'm only drinking all this beer to make developer!!!

    Amazing how the most "off-topic" discussions finally loop back to photography!!
     
  10. zenrhino

    zenrhino Member

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    Not to sound needlessly wonky, but is that iodized table salt or uniodized?
     
  11. titrisol

    titrisol Member

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    mon-iodized salt

     
  12. titrisol

    titrisol Member

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    Caffenol - C revisited

    A while ago I tested adding 4 g/l of vitamin C to caffenol, reported my findings as not so pleasing initially. The stain dimisinhes and the image looked awfully thin.

    BUT, after trying to print the negatives I was pleasantly surprised, it was very easy to print the images (despite long times due to stain), and the low contrast was no problem, tonality was long and soft.
    Sharpness was a bit better than standard caffenol.
     
  13. Claire Senft

    Claire Senft Member

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    For Mr King with tongue in cheek.

    If I drink strong coffee follwed by orange juice will a better quality of pee result? Since agitation and temperature are important can I develop negatives directly from the stream? Does doing so while being pissed off shorten tne develpment time? Is my old prostrate going to prove to be a liability? For all the fellows out there is this a method for stand developing?
    Should the ladies consider getting their feet wet with this method?
     
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  15. garryl

    garryl Member

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    Accually someone made a developer formulated from Urine. Human urine contains small amounts of Pyrocatchenol. So it might , coffee and pee, work. :D :D
     
  16. Ole

    Ole Moderator Staff Member

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    No, ascerbic acid has been shown to have damaging influence on all development.
     
  17. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member

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  18. nspatel

    nspatel Member

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    Coffee/ Ascorbic Acid Print Developer

    In case anyone is interested I have been playing around with coffee for a print developer. I kind of blended Gainer's Ascorbic Acid developer with coffee to get pretty good results. Basically it improves the develop rate compared to just using coffee and helps to preserve the solution a bit longer. The end result is pretty good with some warm tones in the greys. Here is an article with more details.

    http://www.nspatel.com/article1.php
     
  19. srs5694

    srs5694 Member

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    You basically ended up with a conventional phenidone/vitamin C (PC) developer plus coffee. You might want to consider E-72 instead; it's fairly simple (five ingredients, including water) and it's lasted me through multi-hour sessions. I've also used DS-14 with good results. It's more complex, though.
     
  20. htmlguru4242

    htmlguru4242 Member

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    I've also heard about developers fropm tree bark / nut galls (Gallic acid or tannic acid, I'm assuming).

    Does anyone know how to make one of these?
     
  21. avandesande

    avandesande Member

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    Fortunatly I pee dektol.
     
  22. nspatel

    nspatel Member

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    Thanks. I'll check out the E76. I thought sodium sulfite was toxic so I was avoiding it.
     
  23. srs5694

    srs5694 Member

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    E-76 is a PC variant of D-76, the film developer; E-72 is a PC variant of D-72/Dektol, the paper developer.

    As to toxicity, I'm far from an expert, but my understanding is that sodium sulfite isn't a big risk compared to other chemicals you're likely to have in your darkroom. It's hard for a non-expert to evaluate this, though, since MSDS sheets and whatnot are typically so thorough that they make the most innocuous substance sound like it's a life-threatening toxin. (For instance, check out this MSDS sheet for water.)
     
  24. Gerald Koch

    Gerald Koch Member

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    Sodium sulfite is not dangerous in small quantities except to certain asthmatics whose conditions are aggrevated by it. It is used to preserve wine and certain foods.
     
  25. titrisol

    titrisol Member

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    Water? you mean hydrogen hydroxide?
    Or dihydrogen oxide?
     
  26. Photo Engineer

    Photo Engineer Subscriber

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    The original URLs posted by Titrisol of the work done at RIT refers to recent work.

    This entire subject has been known about 100 years, and is reported on in the Haist Book, "Modern Photographic Processing" and has also been mentioned in Anchell and Troop.

    PE