Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 69,727   Posts: 1,515,113   Online: 1148
      
Results 1 to 6 of 6
  1. #1
    darkosaric's Avatar
    Join Date
    Apr 2008
    Location
    Hamburg, Germany
    Shooter
    Multi Format
    Posts
    1,471

    Plain hypo (Sodiumthiosulfate) - it is ok for films?

    Hi,

    I have 2x25 gr Sodiumthiosulfate that I don't need from Farmers reducer that I got - and would like to ship this (shipping liquid abroad is problematic).

    Can this be used for fixing the films? If yes - how to mix this - in 1 liter, and it is enough for 10 films?

    thanks,

  2. #2

    Join Date
    Sep 2006
    Location
    UK
    Shooter
    35mm RF
    Posts
    2,268
    See

    http://www.apug.org/forums/archive/i...p/t-56814.html

    you need 240 gm per L for conventional concentration it would work with 50 gm but you would need to discard after one or two films.
    Buy a large package of hypo.

    Noel

  3. #3
    darkosaric's Avatar
    Join Date
    Apr 2008
    Location
    Hamburg, Germany
    Shooter
    Multi Format
    Posts
    1,471
    Thanks Xmas .

  4. #4

    Join Date
    Sep 2006
    Location
    UK
    Shooter
    35mm RF
    Posts
    2,268
    The safe technique because the fix process for film is

    temperature
    strength/exhaustion of fix
    film type dependent tabular grain takes longer

    Is after development to double wash with faucet water ie two lots of water
    fix for four minutes and inspect the film in dim light
    if it is still milky continue fix and inspect every minute until it stops being milky

    then fix for same length of time again

    You can fix at 15C but I only use 20C throughout the process.

    I then use hypo clear per Kodaks instructions
    and
    Ilfords archival method to their instructions

    I need to do some of this cause I use cheapest film some of time and process in multi tanks and acetic acid stop or temperature shock verboten.

    It is gold standard & I use two fix baths for permenance rather than economy.

  5. #5

    Join Date
    Jul 2010
    Location
    Southern USA
    Shooter
    Multi Format
    Posts
    3,769
    While sodium thiosulfate fixer is slower in its action than ammonium thiosulfate it has the advantage that it will not bleach the image as the ammonium salt can. Ammonium chloride can be added to a sodium thiosulfate fixer to decrease the fixing times. There are recipes on APUG.
    A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.

    ~Antoine de Saint-Exupery

  6. #6
    Ian Grant's Avatar
    Join Date
    Aug 2004
    Location
    West Midlands, UK, and Turkey
    Shooter
    Multi Format
    Posts
    16,162
    Images
    148
    50gm will make very little fixer and postage will be more than it's really worth, you've enough for 200ml or less fixer depending what formula you use.

    it lasts indefinitely keep for use in reducers.

    Ian



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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