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  1. #1

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    Using very dilute one shot fixer solutions for fibre base paper processing

    Previously I've used the traditional 2-bath 1+9 dilution approach for fibre base printing for the most part. Reviewing more recent ILFORD pdfs I see they're still recommending their 1+4 single bath fix for printing; however at a capacity of 10sh 8"x10" per litre this means a lot of fix used per print due to silver accumulation rather than fixer capacity; although I understand the ILFORD sequence is partly based around the idea that a shorter contact time means less fixer to wash out of the paper, in conjunction with a clearing bath.

    The HYPAM documentation (which should hold for other rapid fixers of similar type) appears to give a fixer capacity of 5ml per 8"x10" FB sheet. Multiplied to a working solution this would suggest 1+199 dilution, i.e. 5ml fix concentrate + 995ml water. Obviously this technique has greater practical application for making larger prints with a single tray method, e.g. 20"x24", or 30ml fix + 1970ml water.

    I've read references on APUG from 5 years ago, some associated with my own postings on fixers but nothing more recent. Is anyone here familiar with using fixers at high dilution?

  2. #2

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    Tom, you must be referring to dancqu posts?

  3. #3

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    Quote Originally Posted by miha View Post
    Tom, you must be referring to dancqu posts?
    Yes

  4. #4
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    Tom, in my experience this does not work. And, with paper, it is hard to estimate fix times unless you use a set of test kits.

    PE

  5. #5

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    Quote Originally Posted by miha View Post
    Tom, you must be referring to dancqu posts?
    Almost a founder member but if I am searching correctly nothing from him since April 2011. Doesn't see that long ago but maybe it is. I wonder what happened? Always a bit worrying when early joiners(2002 in his case) disappear

    pentaxuser

  6. #6

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    Quote Originally Posted by pentaxuser View Post
    Almost a founder member but if I am searching correctly nothing from him since April 2011. Doesn't see that long ago but maybe it is. I wonder what happened? Always a bit worrying when early joiners(2002 in his case) disappear

    pentaxuser
    I have asked myself the same question. Dancqu's point of view was rather unique.

  7. #7

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    Quote Originally Posted by Photo Engineer View Post
    Tom, in my experience this does not work. And, with paper, it is hard to estimate fix times unless you use a set of test kits.

    PE
    That is my suspicion as well. Do you have any comment on the ILFORD suggested 1+4 dilution fix single bath sequence with short wash - HCA - short wash?

    Tom

  8. #8
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    I cannot make any suggestions on this Tom. Conditions (and opinions) vary so much all over the world that it is hard to make a viable comment.

    PE



 

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