Emulsion Speed

Joao Ribeiro (jribeiro@greco.com.br)
Thu, 18 Feb 1999 14:47:50 -0300

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Hi,

How can I determine the speed of an emulsion?
I am preparing some silver gelatin emulsion and I'd like to know its
speed.
I guess that I can read the lux amount in my enlarger with my photometer
and them find out by testing strips the minimum time to get the darkest
black but how do I calculate the emulsion speed?
TIA
Joao

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