Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 69,953   Posts: 1,522,771   Online: 982
      
Page 4 of 4 FirstFirst 1234
Results 31 to 40 of 40
  1. #31
    Murray Kelly's Avatar
    Join Date
    Jan 2007
    Location
    Brisbane, QLD. Australia
    Shooter
    35mm RF
    Posts
    417
    Ray, go down to the local pool shop, as I did, and buy a big 5L container of chlorine lowering compound. It's sodium thiosulphate not the ammonium, unfortunately. They got it in in a few days.

    They wanted to know why I needed so much - they thought there'd be enoungh to treat all the pools in Qld.

    So, there you go, another source of photo supplies! :-)

    Murray
    Brisbane, Oz

    Quote Originally Posted by Ray Heath View Post
    g'day all, great info, thnx

    so, we can replace developer, both film and paper, with coffee and washing soda, can we replace fixer with a common household product?

    Ray

  2. #32
    Toffle's Avatar
    Join Date
    Mar 2007
    Location
    Point Pelee, ON, Canada
    Shooter
    Multi Format
    Posts
    1,793
    Images
    121
    Quote Originally Posted by carmenloofah View Post
    Thanks all. Has anyone tried to use coffee and soda crystals as a paper developer for lith prints? If so, please can I have a recipe...I'm using Fomatone FB warmtone paper and looking for a colder effect than that resulting from using LD20 paper developer, perhaps Dektol paper developer added too....thank you
    I have attempted "lith-type" prints with this formula. Tim Rudman tells me that Caffenol does not promote infectious development, though. Caffenol does not work very well with the over-exposure/inspection development technique. I guess, rather than lith printing, you would call Caffenol a staining developer. The results are still quite effective IMHO.

    Cheers,
    Tom, on Point Pelee, Canada

    Ansel Adams had the Zone System... I'm working on the points system. First I points it here, and then I points it there...

    http://tom-overton-images.weebly.com


  3. #33
    Murray@uptowngallery's Avatar
    Join Date
    Sep 2003
    Location
    Holland, MI
    Shooter
    Pinhole
    Posts
    1,028
    I didn't like the 2# prices for 'Chlor-Out' sodium thiosulfate, so I kept calling pool places until I got a distributor. They happily ordered me a 25# pail despite being a retail customer...it was cheap too...
    Murray

  4. #34
    Murray Kelly's Avatar
    Join Date
    Jan 2007
    Location
    Brisbane, QLD. Australia
    Shooter
    35mm RF
    Posts
    417
    Actually it was pretty cheap compared to having it sent a thousand miles from Melbourne. It was 5 Kg in fact = 11#. I just filled the spaces between the big crystals with water. As it gets down I will see how much isn't disolved (if any) and top it up accordingly.

    Next I went to Bunnings hardware garden section and got some ammonium sulphate and just spoon some into the fixer. Just think of it as a mix of ammoniun thiosulphate and sodium sulphate. The film doesn't know any better. Maybe a bit slower than the ATS alone but heaps faster than the STS.

    Murray (Down Under)

    Quote Originally Posted by Murray@uptowngallery View Post
    I didn't like the 2# prices for 'Chlor-Out' sodium thiosulfate, so I kept calling pool places until I got a distributor. They happily ordered me a 25# pail despite being a retail customer...it was cheap too...

  5. #35

    Join Date
    Mar 2008
    Location
    San Diego, CA, USA
    Shooter
    Multi Format
    Posts
    2,228
    Images
    21
    Quote Originally Posted by gainer View Post
    I'm not so sure coffee developer is any safer than catechol after it's been treated with lye, which I cannot buy at any local store.
    Lye? I didn't know anyone had coffee developer recipes with lye. I'm using coffee, washing soda, and ascorbic acid (in proportions that I think originally came from Donald Qualls)---the results are OK, albeit pretty grainy with most films, and I'm pretty confident in the low toxicity of the soup. You *could* ingest enough sodium carbonate to be a problem, but it's hard to see why or how anyone *would*.

    The low-contrast "Caffenol LC+C" version really shines, IMHO. (I've been using it with Adox ORT 25.)

    -NT

  6. #36

    Join Date
    Dec 2005
    Location
    Eastern, Australia
    Shooter
    Multi Format
    Posts
    1,020
    Images
    55
    whoa, backup Murray

    i must admit i'm no techno/chemo junky

    what you posted will make usable fixer?

    Ray

  7. #37
    Murray Kelly's Avatar
    Join Date
    Jan 2007
    Location
    Brisbane, QLD. Australia
    Shooter
    35mm RF
    Posts
    417
    Yup. Folk add ammonium chloride to plain hypo to get the NH4 ions in there - I just used another salt - the sulphate - knowing that NaSO4 is often used to just slow down development on occasion.
    Works OK for me! :-)

    Murray
    Quote Originally Posted by Ray Heath View Post
    whoa, backup Murray

    i must admit i'm no techno/chemo junky

    what you posted will make usable fixer?

    Ray

  8. #38
    Murray Kelly's Avatar
    Join Date
    Jan 2007
    Location
    Brisbane, QLD. Australia
    Shooter
    35mm RF
    Posts
    417
    My good lady wife tells me we have coffee beans on the tree out back. If I strip off the flesh, then dry out the husks, and split the beans to get the kernels I will have the means to test whether the unroasted product will perform better than 'el cheapo' instant coffee.

    Is it possible that in years to come I willl wish I'd experimented more with raw beans than sticking to plain ol' phenidone/metol/pyro ?. :-)

    I think not.
    Murray

  9. #39
    gainer's Avatar
    Join Date
    Sep 2002
    Posts
    3,726
    Images
    2
    Quote Originally Posted by ntenny View Post
    Lye? I didn't know anyone had coffee developer recipes with lye. I'm using coffee, washing soda, and ascorbic acid (in proportions that I think originally came from Donald Qualls)---the results are OK, albeit pretty grainy with most films, and I'm pretty confident in the low toxicity of the soup. You *could* ingest enough sodium carbonate to be a problem, but it's hard to see why or how anyone *would*.

    The low-contrast "Caffenol LC+C" version really shines, IMHO. (I've been using it with Adox ORT 25.)

    -NT
    I must have been thinking about Tylenol. Anyway, I was not being very serious. However, anyone interested in a litho developer should consider using lye. Hydroquinone requires lye or a concoction of sulfite and acetone that generates very high pH, IIRC.

    I have drunk some coffee that seemed to have been seasoned with lye. At least, some have called it "paint remover".
    Gadget Gainer

  10. #40
    Murray@uptowngallery's Avatar
    Join Date
    Sep 2003
    Location
    Holland, MI
    Shooter
    Pinhole
    Posts
    1,028
    I was looking for a local source of ammonium chloride. Apparently one can buy it in blocks for solder flux, or as a feed additive for castrated goats suffering from urinary calculus.

    Local goat farmers must have thought I was nuts. One just takes his to a vet and the other apparently has breeders.

    I guess that is something I'll have to order from PF.
    Murray

Page 4 of 4 FirstFirst 1234


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin