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  1. #1
    Hexavalent's Avatar
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    Return of the Son of AZO

    Back in the lab after a hiatus (gainful employment).
    Measured, mixed, stirred, cooked and coated a variant of PE's AZO formula.

    A couple examples attached: "Nellie cat" looking rather grumpy after having her sunbeam nap interrupted, the boardwalk at Mer Blu, late October afternoon.

    I highly recommend Ron's Emulsion workshops for anybody wanting to get their hands into emulsion-making -- if you enjoy rolling up your sleeves, learning through hands-on, and being in photo Mecca (Eastman House).
    Attached Thumbnails Attached Thumbnails nellie_cat_on_azo.jpg   azo_highconneg_1.jpg  
    Last edited by Hexavalent; 07-02-2011 at 10:46 PM. Click to view previous post history.
    - Ian

  2. #2
    Photo Engineer's Avatar
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    Mercy beaucups!

    PE

  3. #3
    dwross's Avatar
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    Very nice, Ian! Can you share the gist of your variation?

  4. #4

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    Wow! excellent opictures.

    Jeff

  5. #5
    Hexavalent's Avatar
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    Without revealing Ron's formula, I can say that it's a partially washed emulsion with a wee dollop of TAI added.
    - Ian

  6. #6
    dwross's Avatar
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    Interesting! Can you discuss your decision to add TAI? No requirement to explain your secret sauce, of course. I'm just a hopeless emulsion geek who can't be in the darkroom for another three weeks and I'm going nuts .
    d

  7. #7
    Hexavalent's Avatar
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    Quote Originally Posted by dwross View Post
    Interesting! Can you discuss your decision to add TAI?
    A prior batch of emulsion had fogged somewhat due to storage under less than ideal conditions - TAI is a stabilizer, so I figured a little dollop wouldn't hurt. It didn't hurt
    - Ian

  8. #8
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    No, it does not hurt and it is particularly good with AgCl and AgClBr emulsions. I did a study on this at Kodak. It can actually increase speed and development rate depending on emulsion type and grain size.

    PE

  9. #9
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    Ian, how come when I try accessing the emulsion101.com Forum it says my IP address is banned ?

    I've many years experience of emulsion manufacture & coating commercially so this seems rather odd.

    Ian

  10. #10
    Hexavalent's Avatar
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    Quote Originally Posted by Ian Grant View Post
    Ian, how come when I try accessing the emulsion101.com Forum it says my IP address is banned ?

    I've many years experience of emulsion manufacture & coating commercially so this seems rather odd.

    Ian
    Your IP (or a range) has probably been flagged as a source of spam.
    PM your ip and email, and I'll put it on the 'okay' list.
    - Ian

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