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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).
Last edited by Hexavalent; 07-02-2011 at 10:46 PM.
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Mercy beaucups! 
PE
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Very nice, Ian! Can you share the gist of your variation?
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Wow! excellent opictures.
Jeff
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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.
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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
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 Originally Posted by dwross
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
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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
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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
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Originally Posted by Ian Grant
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.
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