[Alt-photo] Re: DAS from China

[Sandy King]

Jorj,

Are you making carbon prints on fiber paper with the DAS? If so, are you able to eliminate the yellow stain that has described as characteristic of DAS?

Sandy


On May 31, 2013, at 6:19 PM, Jorj Bauer wrote:

> Just to follow up to everyone: the DAS from China is great. I'm using a 3% (w/v) solution, 1:1 with acetone, brushed on (because I have existing sheets of carbon) and it works fundamentally the same as a 1.5% of Ammonium Dichromate, 1:1 with acetone, brushed on the same, dried the same, same exposure time.
> 
> The ChartThrob curves are very similar. Both are nearly linear, with DAS being closer to linear response. Which makes it easier to use stock negatives without diddling with curves; I'll probably never use this curve.
> 
> The two curves are here for anyone that's interested:
> 
> 	http://www.jorj.org/expire/jorj_carbon_das_6m.acv
> 
> 	http://www.jorj.org/expire/jorj_carbon_6m.acv
> 
> -- Jorj
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