Rayco Ultra Fine-Grain B&W Negative Developer.

Rayco Ultra Fine-Grain B&W Negative Developer.

  1. Keith Tapscott.

    Keith Tapscott. Member

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    Keith Tapscott. submitted a new resource:

    Rayco Ultra Fine-Grain B&W Negative Developer. - Rayco Ultra Fine-Grain B&W Negative Developer.

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    Last edited by a moderator: Feb 6, 2016
  2. vdonovan

    vdonovan Subscriber

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    Hi Keith, I'm interested in the book you mention, RAYKO REVEALS. Can you tell me more about it? There is a photography center here in San Francisco called Rayko and I wonder if there is a connection to the book.
     
  3. Ian Grant

    Ian Grant Subscriber

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    Rayco or to give the full name Raycolor Ltd was a UK based company based in Farnham, Surrey originally, laterthe business was sold and moved to Lancashire. They began production just after WWII manufacturing electronic timers, voltage stabilisers, etc later moving into photochemistry mainly selling raw ingredients, they had no link with San Francisco.

    Ian
     
  4. vdonovan

    vdonovan Subscriber

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  5. Peter Schrager

    Peter Schrager Subscriber

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    raycophoto

    what a great resource!! you sf'ers are so lucky!!
    peter
     
  6. Trask

    Trask Subscriber

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    Anyone know what "CD-4" is?
     
  7. Ian Grant

    Ian Grant Subscriber

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    CD-4 is a Kodak colour developing agent, it is 4-amino-3-methyl-N-ethyl-N-(2-hydroxyethyl) aniline sulphate, there a many ways to write the name, another is para-hydroxyethylethylamino-orthotoluidine sulphate thta's why it's bestknown as CD-4 :D

    Ian
     
  8. Trask

    Trask Subscriber

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    Hmm... so not readily available from, say, Photographer's Formulary.
     
  9. Ian Grant

    Ian Grant Subscriber

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    I'd be surprised if it isn't, many people make up their own colour chemistry from scratch, CD-4 is Kodak's name but it is available from a variety of manufacturers. Someone should be able to tell you a US supplier (assuming you are in the US).

    Ian
     
  10. Blighty

    Blighty Subscriber

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    i Have a copy of 'Rayco reveals' plus their other book of photographic formulae. Don't know where I stand on this legally, but I suppose I could scan the book in and send them to you as an attachment via email (as long as I'm not liable to get shafted by anyone!)
     
  11. Les

    Les Subscriber

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    I would like to see a copy as well if you wouldn't mind. Thanks, Les
     
  12. vdonovan

    vdonovan Subscriber

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    Same here. The folks at the Rayko center here would get a kick out of it, and maybe even start a project around it.