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  1. #11
    htmlguru4242's Avatar
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    Thanks for the warning about carbon black, PE.

    I don't thik that the emulsion is going to be a problem as the initial system is going to use regular sheet film glued to the mask, so the carbon black, starch, etc. are going to be facing hte base of the film.

    If I could find a liquid panchromatic emulsion ...

  2. #12
    Photo Engineer's Avatar
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    Please remember that one of the problems in printing or duplicating any of these films (Autochrome, Lenticular or Dufay) was the inability to duplicate them due to the masks. That means that re-registration was a problem if they were separated at any time from the original mask or screen.

    PE
    Last edited by Photo Engineer; 07-11-2006 at 06:35 PM. Click to view previous post history. Reason: Improve syntax and add Lenticular to the list.

  3. #13

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    Dufay Color is a huge pain to duplicate due to mechanical and spectral considerations (I could go on for pages). While it can look fairly good, but dark, I can honestly say it is NOT a process I have any desire to revive for modern use!

  4. #14
    htmlguru4242's Avatar
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    Well, my problem is not going to be re-registration, as everything is going to be epoxied (or somehow glued) together. Hopefully that'll make it much easier.

  5. #15
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    Quote Originally Posted by htmlguru4242
    Well, my problem is not going to be re-registration, as everything is going to be epoxied (or somehow glued) together. Hopefully that'll make it much easier.
    Html, I know experts in the field and I have friends who know experts in the field. Perhaps it would expedite your work if you contacted me and I gave you their names and e-mail addresses. They are willing to help.

    PS: why not XML? Or Java? Just kidding.

    PE

  6. #16

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    Quote Originally Posted by Photo Engineer
    Html, I know experts in the field and I have friends who know experts in the field. Perhaps it would expedite your work if you contacted me and I gave you their names and e-mail addresses. They are willing to help.
    PE
    Well, I would hope that knowledge could be brought back and shared with all of APUG.

  7. #17
    Photo Engineer's Avatar
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    I will not reveal names or e-mail on APUG.

    PE

  8. #18

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    Not the names and email addresses; the knowledge of the process.

  9. #19
    Photo Engineer's Avatar
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    That is for them to post, not me.

    I don't post the ideas or knowledge of others and if they prefer to keep it to themselves or reveal it only via e-mail it is their business. Sorry.

    PE

  10. #20

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    Quote Originally Posted by Photo Engineer
    That is for them to post, not me.

    I don't post the ideas or knowledge of others and if they prefer to keep it to themselves or reveal it only via e-mail it is their business. Sorry.

    PE
    Well, PE that is just fine and dandy; I think you have made your position perfectly clear to everyone.

    Got it. OK?

    If no one wants to share, I can go develop it myself and post it all I like, right?

    I would never post anyone's confidential information if they preferred me not to, but there is certainly more than one way to skin a cat; even in photography.

    While I respect others rights of others to develop their processes and tweak them to their standards, they don't own the Autochrome process anymore than I do and, should I run across a similar method or develop my own, I will post it for all to see and that is my prerogative.

    I don't see how taking this discussion out of APUG (effectively killing it) and putting it into the hands of photographers who, for whatever reason, don't want their methods published, advances the art of photography for the members of APUG.

    I would rather have an imperfect process and learn about the underpinnings of photography than have a closed-loop system of near-perfect images and not learn a thing beyond the characteristics of that particular flavor of the process.

    If you make a living or have a substantial investment in a process, as you and others obviously do, then I congratulate you and respect your right to keep this information proprietary and would, if I can ever afford it, like to take your class on emulsion making, but it won't bind me to not exploring or sharing emulsion making outside of your specific techniques and methods.

    Htmlguru, if you'd like to and are in a position to share ideas, knowledge and specific bits of technique, I am interested and assume others are on this forum.

    It kind of IS the whole idea behind APUG, right?

    Frank W.

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