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  1. #11

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    The C-41 process uses CD4. E-6 and RA-4 processes both use CD3. This is according to Photo Engineer.
    ME Super

    Shoot more film.
    There are eight ways to put a slide into a projector tray. Seven of them are wrong.

  2. #12
    wogster's Avatar
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    Quote Originally Posted by Diapositivo View Post
    Wouldn't the problem be the long-term (20 years) conservation of CD4? I would be very glad if I could invest into a 20-years slide stock, I have always been worried about long-term preservation of chemicals.
    I've seen posted here, people who have 20+ year old stock and it still works fine. It is a powder, and if you keep it away from air and water it should be fine.....
    Paul Schmidt
    See my Blog at http://clickandspin.blogspot.com

    The greatest advance in photography in the last 100 years is not digital, it's odourless stop bath....

  3. #13
    Diapositivo's Avatar
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    Quote Originally Posted by wogster View Post
    I've seen posted here, people who have 20+ year old stock and it still works fine. It is a powder, and if you keep it away from air and water it should be fine.....
    If that applies also to CD3, then I think I will be using slide film for the next 60 - 70 years or in any case for the rest of my life if longer (I'm an optimist).
    Fabrizio Ruggeri fine art photography site: http://fabrizio-ruggeri.artistwebsites.com
    Stock images at Imagebroker: http://www.imagebroker.com/#/search/ib_fbr

  4. #14
    Andre Noble's Avatar
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    dslater, Just Do It!

    Smart film photographers are stockpiling and freezing Velvia 50: I am double Ziplocking the 5 pack boxes of 120 rolls. I am using Nylofume (gas impermeable - antifumigation) bags for others.

    I used to just stick the boxes and rolls in the freezer. But After reading this site, I realize that you have to protect against moisture first and foremost.

    Believe me, these will be considered Gold in 10 or 15 year's time - most importantly by yourself..
    Andre Noble, Beverly Hills California http://andrenoble.com/

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