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Thread: kodak Tmax RS developer formula

  1. #1

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    kodak Tmax RS developer formula

    Where can I find out Kodak tmax rs developer formula so I can make it by myself? It looks like kodak tmax rs developer was DISCONTINUED by Kodak. BH is no longer ship them to buyers, store pick up only.

  2. #2

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    Re: kodak Tmax RS developer formula

    I don't think you can. It's a proprietary product. The MSDS probably will give some general clues.

  3. #3

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    Re: kodak Tmax RS developer formula

    Quote Originally Posted by tax888 View Post
    It looks like kodak tmax rs developer was DISCONTINUED by Kodak. BH is no longer ship them to buyers, store pick up only.
    It looks that the 50L version can be shiped: https://www.bhphotovideo.com/c/produ...plenisher.html


    With sheets you may try regular "non RS" TMAx deveveloper. It is not recommended in the datasheet for sheets because it may provocate dichroic fog in the sheets. It looks that this only happens with some kinds of tap water, so if you get dichroic fog with in sheets with (non RS) TMax then you may use some mineral water or distilled water to make the working solution.

  4. #4

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    Re: kodak Tmax RS developer formula

    i found these guys when b&h stopped shiping alot of darkroom chemicals. give them a call?

    https://www.uniquephoto.com/kodak-t-...1-gall-8446163


    UNIQUE PHOTO SUPERSTORE
    123 US Hwy 46 (West)
    Fairfield, NJ 07004
    1-800-631-0300

  5. #5

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    Re: kodak Tmax RS developer formula

    I once switched to non-RS TMax developer for sheet film due to difficulties getting RS. Even with distilled water I somehow managed to get dichroic fogging.....YMMV

  6. #6

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    Re: kodak Tmax RS developer formula

    Quote Originally Posted by Paul Ron View Post
    i found these guys when b&h stopped shiping alot of darkroom chemicals. give them a call?

    https://www.uniquephoto.com/kodak-t-...1-gall-8446163


    UNIQUE PHOTO SUPERSTORE
    123 US Hwy 46 (West)
    Fairfield, NJ 07004
    1-800-631-0300
    I emailed Unique Photo Superstore to see if they would be restocking the Kodak Tmax RS developer to make the 1 gallon size and was told that it had been discontinued. Freestyle states it has been discontinued on their website. I've used Tmax RS for all the developing for my Tmax sheet film and that smaller bottle that makes the 1 gallon sure was convenient. The larger size bottles would probably expire before I could use it all.

  7. #7
    the Docter is in Arne Croell's Avatar
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    Re: kodak Tmax RS developer formula

    Quote Originally Posted by Pat Kearns View Post
    I emailed Unique Photo Superstore to see if they would be restocking the Kodak Tmax RS developer to make the 1 gallon size and was told that it had been discontinued. Freestyle states it has been discontinued on their website. I've used Tmax RS for all the developing for my Tmax sheet film and that smaller bottle that makes the 1 gallon sure was convenient. The larger size bottles would probably expire before I could use it all.
    TMax RS keeps a long time in my experience if it is kept in full bottles. I had the big double bottle version some years ago when I could get a really good deal on it. I refilled it into smaller glass bottles filled to the brim, and used it over three years. Never had a problem even after the three years. And I just ordered another set of the large bottles to do the same again.

  8. #8

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    Re: kodak Tmax RS developer formula

    Quote Originally Posted by Pat Kearns View Post
    I The larger size bottles would probably expire before I could use it all.
    Adding to what Arne pointed.

    Even in the case you cannot use it all, still the large ammount has a 25% discount, compared, so even in the case you can spend only the half you would have a not that large cost increase.

    If you plan a long shelf storage then you should perform a "drop test" on film ends, by (lights open) allowing to fall a drop every minute on a film end and later fixing you have an strength reference. Then you repeat that test over time to see if strength changed, you may correct development time or chem concentration to keep consistence, and you won't ruin sheets.

    By placing the compared strips with the drop test on a light table you will see what you have to do, but also you may scan the strips alongside (reference and last) to see the gray levels in the different "drops", to compare numerically if you want.

  9. #9
    Greg Davis's Avatar
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    Re: kodak Tmax RS developer formula

    I’m going to wait and see if it comes back from the new supplier like Xtol and HC110.

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