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  1. #1

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    Modifying developers for developing old film

    Hello,

    I have a couple of old rolls of family film (10-40 yrs old) some color, some black and white. Today I was trying to develop a roll of kodacolor X in rodinal 1:50. I'm just trying to reduce some silver and not bothering with the dyes. I could see very very faint frame lines after fixing. So I believe something is there, on this particular film, but is fogged horifically. Could someone suggest time, temperature, or. chemical modifications I can use to develop this particular film, and perhaps the others, too. I have rodinal, D-76, sodium sulfite, lye, and benzotriazole at my disposal.

    Thank you

  2. #2

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    HC110.

    10 years old is no big deal, probably just a bit more time. For the old ones, do a Google search for developing outdated film with HC110. You should find some very helpful tips. I had surprisingly good luck doing this with some exposed film more like 60 years old.

    I'll try to find some info later if you can't turn it up.

  3. #3

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    Thank you, Mark. I did a search and looks like HC-110 is indeed great for low fog. Unfortunately I don't think I can spring for another dev right now. So, let me restate the question.

    I want to develop a very old reel of Kodacolor X thats badly fogged (did clip test). Does anyone know of any modifications that can be made with either D76 or rodinal, using sulfite, benzotriazole, dilution time or temperture that can help remedy severe fog?

    Thank you

  4. #4
    agfarapid's Avatar
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    Can't really respond to developing old Kodacolor X . If you find out, spread the news, I have about 15 rolls of C-41 films to process. I can speak highly of HC-110 and 20 year old TMX (TMax 100). Processed normally at 7 min dil B at 68 degrees the results were excellent, showing no fog and just a big more grain. I have tried Rodinal on old films with pretty poor results. Good luck in your search.

  5. #5

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    Quote Originally Posted by agfarapid View Post
    Can't really respond to developing old Kodacolor X . If you find out, spread the news, I have about 15 rolls of C-41 films to process.
    Kodacolor X is C-22, so I wouldn't try to process it c-41. Don't know what c-22 involves myself, don't care to learn as it probably is more trouble than it's worth.

  6. #6

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    Quote Originally Posted by silvergrahm View Post
    Thank you, Mark. I did a search and looks like HC-110 is indeed great for low fog. Unfortunately I don't think I can spring for another dev right now. So, let me restate the question.

    I want to develop a very old reel of Kodacolor X thats badly fogged (did clip test). Does anyone know of any modifications that can be made with either D76 or rodinal, using sulfite, benzotriazole, dilution time or temperture that can help remedy severe fog?

    Thank you
    Someone else may have some suggestions, so I'll butt out after this, but a bottle of HC110 is pretty cheap. Someone can probably give you an old bottle that is laying around; I would if you were near here. An old bottle of dark brown HC110 will probably still work fine, and since you have to find your times anyway a slight loss of activity wouldn't make any difference.

    Maybe you just enjoy experimenting, but I don't see trying to re-invent the wheel.

  7. #7
    StoneNYC's Avatar
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    Modifying developers for developing old film

    I've been doing a lot of this, just developed some Verichrome that expired in 1947 with good results.

    B&W is much easier than color films though.

    You need to use a FAST developer to reduce fog from my limited trial runs, so find a developer that has fast times like Ilfsol 3 which does most films for 5 minutes. Long developers seem to introduce fog.

    I've been collecting info on older color films and I'm putting together the original developers from scratch. I think that's much better ultimately. It's just an arduous process.

    Examples of "success"



    If you find the full C-22 process chemistry WITH actual measurements, please pass it along.




    ~Stone

    Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk
    ~Stone | "...of course, that's just my opinion. I could be wrong." ~Dennis Miller

  8. #8
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    Modifying developers for developing old film

    Oh and I often use the 10 years = 1 stop rule. So Example...

    32ASA film that expired in 1983 would be shot at EI8.

    If the film can be verified frozen all that time I would half the number and do EI16.

    Hope that helps. The above images were shot at EI3 but on paper should have been EI0.75! But my meter only went to 3ASA and I figured there's a sort of reciprocity factor that at some point a film won't lose speed as quickly as it ages.

    I also think I might have shortened the developing time by a minute to get more contrast and less fog but maybe not.

    I have 3 more of those reels so we shall see what the next one gives.


    ~Stone

    Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk
    ~Stone | "...of course, that's just my opinion. I could be wrong." ~Dennis Miller

  9. #9

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    For B&W I can also recommend HC-110 for old films. It gives a significant lower base fog. Comparing the same film (HP5+, 135-36) 12 y.o. in Xtol 1+0 and HC-110 dil. B, shot on E.I. 320:
    Base fog Xtol: 0,40 logD
    Base fog HC-110: 0,28 logD.
    New film 0,2 logD although last time for PAN F+ the regular base fog is 0,25 logD which is IMO pretty high.

    Clear Polyester films from Rollei, Efke and Foma (120, new versions) are much lower: 0,05 logD or even less. But here you have to watch out for the "light piping" effect, especially in 35mm.
    My favorite store: http://www.fotohuisrovo.nl

  10. #10
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    Modifying developers for developing old film

    I've posted on there but will repeat, it seems they believe its the restrainer in the paper developer, so why not simply identify the restrainer compound, and add that to the already proficient HC-110 film developer? That way you won't have to deal with the need to be more aggressive because of the paper developers other non-for-film characteristics?


    ~Stone

    Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk
    ~Stone | "...of course, that's just my opinion. I could be wrong." ~Dennis Miller

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