[pure-silver] Re: Kodak Special PX 3001paper

At 01:43 PM 3/24/2008, you wrote:
PX just means experimental. FX is "film experiment" PX is "paper experiment". The 3001 just means that was the next number available from corporate for test projects. It is a more recent number. Open the box (in total dark, no safelights) and see if there is a stuffer sheet inside. It will tell you how to process the paper and hopefully how to expose it. I don't remember if 3001 was one of mine or not. 

Dave
Here is a question maybe you can answer. There has been mention that cadmium was used as an additive to paper for a long time and that it had to be removed due to its being an environmental hazard. What was it used for exactly? Some literature suggests it was a preservative and some a warm tone agent, perhaps it was both. In any case it has been suggested that one reason the shelf life of current papers seems to be shorter than some in the past is due to the lack of cadmium. 




--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx 
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