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  1. #1
    shicks5319's Avatar
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    Changing Developing Times with dilution

    Hi everyone. I hope you don't mind another question from the newbie corner.

    I am shooting TRI-X 320 and developing in HC-110. Kodak's tables show the developing time for this combination in trays at 3.25 minutes (20C). It seems to me this leaves very little room for N- or N+ development; certainly at times as short as this the margin of error is higher.

    I want to try dilution beyond the standard "B" suggested by Kodak as a means of stretching out the development time.

    Before I start any trials, I thought I'd see what experiences this group may have in this area. Are there published data on this tactic?

    Thanks in advance for any insight.

  2. #2
    juan's Avatar
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    There was a lot of discussion about the short development times when Kodak introduced the latest version of Tri-X. A lot of people think the published times are simply incorrect - far too short. Most people seem to continue to use their times for the older version of Tri-X - probably in the 5-6 minute range.

    Take a look at this page for a lot of information on HC-110, including with Tri-X

    http://www.covingtoninnovations.com/hc110/

    juan

  3. #3
    Flotsam's Avatar
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    I had the same problem and question a few months ago using a different film/developer combo. I wound up having good results. That thread may be minimally helpful:
    http://www.apug.org/forums/forum37/7491-i-need-longer-dev-times.html
    That is called grain. It is supposed to be there.
    =Neal W.=

  4. #4

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    Good Afternoon, Shicks,

    Go to Google and enter "HC-110 Developer" (without the quotation marks, of course); you should get a web site for Covington Innovations which has very detailed information on the developer, including various dilution ratios and some recommended times for several popular films.

    Konical

  5. #5
    shicks5319's Avatar
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    Thanks for the Help

    Thanks for the help on this. the references were very interesting.

    I noted that one suggestion was that doubling the dilution would render the developer into a one shot mix where as now Kodak has a quantity of film suggested.



 

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