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  1. #1
    marciofs's Avatar
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    Ilfotec-HC Dilution

    I was looking for information about Ilfotec on the search and in one of the posts somebody told about this dilution:

    [...] Ilfotec comes as thick goop. You have to mix it 1:3 with water to get stock. Then you dilute the stock to 1+31, 1+47 etc.
    Is this right? Because I have being diluted 1+31 straight from the bottle to develop my negatives and the results seems to be fine.

  2. #2

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    I also dilute it straight from the bottle, it works just fine. Ilford warns to make stock first by diluting the concentrate 1+3 with water and diluting it further 1+7 with water to make 1+31 as it is more likely to measure more accurately this way. I just use a small graduated cylinder with success.

  3. #3
    marciofs's Avatar
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    I didn't know that.
    It means it can last even longer.

  4. #4
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    Wait is this basically Ilford's version if HC-110? Similar to Ilford's version of D-76 which is ID-11 ? Anyone?


    ~Stone | Sent w/ iPhone using Tapatalk
    ~Stone | "...of course, that's just my opinion. I could be wrong." ~Dennis Miller

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    Ilford lists both Ilfotec HC and Ilfotec LC29 as "equivalents" to HC-110. Note this does not mean they are exactly the same. Like HC-110, these two Ilford developers are highly concentrated, Phenidone/Dimezone-Hydroquinone formulas, and they operate within a pH range close to HC-110. That is about all we can say and it doesn't necessarily say much about working characteristics. Ilfotec LC29 is described by Ilford as being based on Ilfotec HC but an easier-to-pour concentrate for lower volume processing.

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    Anoter 'equivalent' to HC-110 is Tetenal Neopress HC.

  7. #7
    marciofs's Avatar
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    But you guys dilute it 1+3 (and the 1+7) before dilute it again to develop the film?

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    No, I work with the concentrate from the bottle. I take one part of the concentrate and mix it with 31 parts of water. As simple as that.

  9. #9
    marciofs's Avatar
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    Since it seems most people works with the concentration from the bottle, what is the best to do? I am attempted to do the pre dilution because it would last longer. But if nobody or few does I wonder about the result quality.

  10. #10

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    It would not last longer, why would it? You said that you have been diluting it straight from the bottle before and that you were satisfied with the results. Why change?

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