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  1. eli griggs

    A
    Paper developer with long shelf life

    That's really good to know as I've thought of the Morgan and Morgan as the last word on many topics. Godspeed and Best Wishes for the Holidays and Thank You for setting me straight about these formula, Eli
  2. bernard_L

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    Cool tones, Warm tones Neutral tones

    ...e.g.the eggplant color of Se toning...) Anyway, to me "blue tones" is not "more neutral". Long-time user of Dektol/D-72, about to try ID-62 in the hope of having more truly neutral tones. Also keep in mind your suggestion to add the restrainer at the last moment to preserve flexibility.
  3. Ian Grant

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    Paper developer with long shelf life

    ...every US publication listed 0.4g (per litre) Potassium Bromide I knew the correct weight was 4.5g, essentially it's the warm tone version of ID-62 with no Benzotriazole and increased Bromide. So after that I was quite sceptical and began finding more errors. Finally, I picked up some Lab...

  4. A
    Paper developer with long shelf life

    For those who want to home-brew something without Metol, which can cause dermatitis, I suggest starting with ID-62. Here is its formula: ID-62 Ilford "Universal" PQ Developer (like D-72, but uses Phenidone) Start with 750 ml warm water (125f or 52c). sodium sulfite (anh) ......... 50 g...
  5. eli griggs

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    Paper developer with long shelf life

    Thanks. I had no heard of the Morgan and Morgan having bad data before today. Is there a thread listing the mistakes I could turn to? I would have thought that with yearly updated sheets and addendum, mistakes would have been corrected in timely fashion, up to the last year published. Best...
  6. Ian Grant

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    Paper developer with long shelf life

    The AgfaMCC formula was never published, also be aware that a high percentage of the formulae in the Morgan & Morgan publications are incorrect. The Agfa Neuto WA Warmtone developer is very similar to Ilford ID-78. MCC is probably similar to ID-62. Ian

  7. A
    Paper developer with long shelf life

    ...print developer is the one that sits on your shelf in dry powder form and gets mixed just before use and discarded after the session. I mix ID-62, D-72, ID-78 and a few others on the spot; just enough for the current printing session. If I plan on printing for a few days, I'll mix up a few...

  8. A
    Teaspoon formulas and stickies

    ...of that in the mix. Then you can use volume measurements instead of weight. For example, I use a 1% solution of benzotriazole when mixing ID-62, and just add the correct amount of liquid to get the small amount of BTA the recipe calls for. Many chemicals keep well in aqueous solution...
  9. Ian Grant

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    Questions about sodium Hydroxide as accelerator for B+W graded paper.

    ...Rapid. One option that I used to use many years ago with graded papers was Ilford ID-14 published as a Press Contrast developer, it does give quite a decent boost in contrast. It's worth noting that Ilford recommend ID-62 normally be used at 1+3, but for higher contrast 1+2 or even 1+1. Ian
  10. Ian Grant

    A
    Questions about sodium Hydroxide as accelerator for B+W graded paper.

    The formula above ID-62 is missing the normal 2 gm of Potassium Bromide, you could double this to 4 gm that will help improve the contrast. Selenium toning the negative will work with negatives developed in Pyrocat hD. Another option is to tine the print with Ilford IT-8 Toner, but this gives...

  11. A
    Modifying ID-62 for colder tones

    Hi, ID-62, which is a neutral tone paper developer, contains 2g KBr and 0.2g Benzotriazole per liter. How low on KBr and how high on Benzotriazole can one go for the coldest tones, if colder tones with phenidone based developers are at all possible? My benchmark is the cold tone Agfa 103...
  12. Ian Grant

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    Phenidone or Dimezone / ID62 or PQ Universal - same or different?

    You have to see the context of the OP's question with regard to previous posts, and realise Ilford recommend ID-62/PQ Universal for Reversal processing. One comment I've seen others post online, and I've experienced personally, is when Ilford PQ liquid developers switched from Phenidone to...

  13. A
    Phenidone or Dimezone / ID62 or PQ Universal - same or different?

    @Ian Grant , do you have any idea how different todays Ilford PQ Universal is from concentrated ID-62 (http://lostlabours.co.uk/photography/formulae/developers/devID62.htm) in character and strength?

  14. A
    Phenidone or Dimezone / ID62 or PQ Universal - same or different?

    Ilford PQ Universal has to be stronger then concentrated ID-62 (http://lostlabours.co.uk/photography/formulae/developers/devID62.htm). Is there a way to assume how much sodium sulfite is needed for a given development time?
  15. Raghu Kuvempunagar

    A
    Ilford ID-20 as Reversal First Developer

    Ilford PQ Universal developer and its close cousin ID-62 have been used as the first developer in B&W reversal processing with suitable amount of halide solvent. There is a MQ precursor of ID-62 called ID-20 which used Metol in place of Phenidone. Has anyone here used ID-20 as the first...
  16. Ian Grant

    A
    Chemical compounds and their effect

    ...MQ, there were complaints that Ilford ID-20 PQ was giving shifts in image colour with use, so it was re-formulated adding Benzotriazole as ID-62 and then released in liquid form as PQ Universal. Ilford also released a variant of ID-62 as a powder developer ID-78. So the simple answer is the...
  17. brian steinberger

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    Paper Developers?

    ...had that issue in the past. And now at $24 a bag it’s too expensive to take a chance. I’m planning to start mixing my own PQ developer, the ID-62 formula and start messing around with adding PMT and trying to get longer selenium times with a shift toward blue black if anything. I can achieve...
  18. Don_ih

    A
    Back to photography after 7 year hiatus. What hope for my film and paper.

    Ilford ID-62. It has bromide and benzo - but you can raise one and lower the other to warm/cool tones. If you have a big supply of Phenidone, it will take a long time to get rid of it at 1/2 a gram per litre of developer.

  19. A
    Temperature-correction of *Paper* development-time

    Hi @Timberwolf If you go to the resource tab you'll see articles and recipes https://www.photrio.com/forum/resources/ilford-id-62.170/ I've never used ID-62 before but D-72 and use 1/dilution for dilution-minutes. ( 1:6 for 6 minutes, 1:10 10 mins &C ) as a starting point.. I also did a quick...

  20. A
    Benzotriazole and Sodium Carbonate solutions

    ...changes unless we've calibrated our systems). The whole BTA/carbonate thing works best for graded papers. Still, I'll add a bit of BTA to my ID-62 from time to time just to get a different look on the toe of the paper, especially if there are lots of delicate whites I'm fighting with...
  21. Don_ih

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    Benzotriazole and Sodium Carbonate solutions

    That is due to the difficulty of dissolving benzo - it dissolves more readily in an alkaline solution.
  22. Timberwolf

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    Benzotriazole and Sodium Carbonate solutions

    Ilford ID-62 formula notes: "An alternative restrainer solution [instead of the proprietary one given in the formula] may be made by dissolving 10 grams of benzotriagole (sic) in 1 litre of 1% sodium carbonate solution."...
  23. MattKing

    A
    Temperature-correction of *Paper* development-time

    Welcome to Photrio. It seems to me that your question is novel, and deserves a thread of its own. Feel free to start it in this sub-forum. If you need help, feel free to ask. I'd suggest a title like "How best to use ID-62 "universal" developer for both film and paper".
  24. Timberwolf

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    Temperature-correction of *Paper* development-time

    ...my first post so if there is a better way to find an appropriate thread for this question, please inform me. I am considering using a modified ID-62 "universal" developer for both film and paper. The only difference in my formula is a slight increase of benzotriazole and elimination of...

  25. A
    Temperature-correction of *Paper* development-time

    ...adding print exposure. When making a print, I standardize on a development time that's a bit longer than recommended, usually 2.5 minutes in ID-62 or D-72. Then, as I'm refining my print, I can add or subtract a little development time to refine my print exposure instead of having to make...
  26. Ian Grant

    A
    Concentrated long lasting paper developer formula

    ...the late 1950's customers complained that the ID-20 PQ was causing shifts in the colour of tones with use. They re-formulated the developer as ID-62 adding Benzotriazole and halved the Bromide, they also increased the concentration and sold it in liquid form as PQ Universal switching from...

  27. A
    Concentrated long lasting paper developer formula

    I added 5gr of bromide to a liter of concentrate to dilute 1+9, is it enough? I already ordered some benzotriazole
  28. Ian Grant

    A
    Concentrated long lasting paper developer formula

    What you've actually mixed is not ID-62 rather ID-78 the warm tone variant. I't won't give you fog :D The Benzotriazole is there to produce Neutral tone in ID-62. You didn't need to add the Potassium Hydroxide as well as the 150gm Sodium Carbonate you only add Hydroxide if you reduce the...

  29. A
    Concentrated long lasting paper developer formula

    The molecular weight of potassium carbonate is 138.2, sodium carbonate is 106. In the formula for the 1+9 concentrate of ID 62 , 95 grams of potassium carbonate could be replaced by (95 x 106)/ 138.2 = 73 g/L sodium carbonate anh. http://lostlabours.co.uk/photography/formulae/developers/devID62.htm
  30. RalphLambrecht

    A
    Concentrated long lasting paper developer formula

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