Ilford Hypam Fixer, ok for Pyro?

Discussion in 'B&W: Film, Paper, Chemistry' started by bmac, Apr 8, 2004.

  1. bmac

    bmac Member

    Messages:
    2,156
    Joined:
    Sep 30, 2002
    Location:
    San Jose, CA
    Is Hypam 1+4 ok to use with Pyro based developers?
     
  2. matt miller

    matt miller Subscriber

    Messages:
    829
    Joined:
    Feb 11, 2004
    Location:
    Iowa
    Shooter:
    Multi Format
    I hope so. That's what I've been using for my 8x10 Efke/ABC negs. Do you have reason to believe otherwise?
     
  3. bmac

    bmac Member

    Messages:
    2,156
    Joined:
    Sep 30, 2002
    Location:
    San Jose, CA
    No reason to believe so, but I don't know enough about chemistry to know if it is the correct type.
     
  4. roy

    roy Member

    Messages:
    1,308
    Joined:
    Sep 7, 2002
    Location:
    West Sussex
    Shooter:
    Medium Format
    I use it, after a couple of plain water rinses. I think some use ammonium based fixer to preserve the stain but I have never found it to be a problem.
     
  5. Tom Hoskinson

    Tom Hoskinson Member

    Messages:
    3,879
    Joined:
    Mar 7, 2004
    Location:
    Southern Cal
    Shooter:
    Multi Format
    Ilford Hypam is an ammonium thiosufate based rapid fixer with no hardener incorporated. It works great with pyro because it does not contain a hardener. A non-hardening sodium thiosulfate based fixer will work equally well with pyro - just a bit slower.
     
  6. bmac

    bmac Member

    Messages:
    2,156
    Joined:
    Sep 30, 2002
    Location:
    San Jose, CA
    excellent info, thanks!
     
  7. Snapper

    Snapper Member

    Messages:
    224
    Joined:
    Mar 18, 2004
    Location:
    Brighton, En
    Shooter:
    Med. Format RF
    Is Ilford Ilfostop also ok to use with Pyro? I see some people use plain water - why is that?
     
  8. roy

    roy Member

    Messages:
    1,308
    Joined:
    Sep 7, 2002
    Location:
    West Sussex
    Shooter:
    Medium Format
    Don't know about Ilfostop but I would have thought just about any stop bath would have been OK in the correct dilution. When I first used a staining developer, the article I read said that a good wash for the film was sufficient and would obviate any stain reduction through the use of another chemical, to wit, the stop bath. It is a habit that I have got into and use plain water rinses with agitation whatever developer I use !
     
  9. Tom Hoskinson

    Tom Hoskinson Member

    Messages:
    3,879
    Joined:
    Mar 7, 2004
    Location:
    Southern Cal
    Shooter:
    Multi Format
    An acid stop bath is not desireable and not needed with staining and tanning developers ("pyro"). Acidic solutions can reduce the stain.

    A plain water rinse is fine - and it arguably increases fixer life.

    Some workers use an alkaline fixer as a one-shot immediately post development (they add fixer concentrate directly to the used developer - post development).

    Post development I use a brief water rinse, followed by an alkaline fixer (TF-4).