[alt-photo] Re: VDB problem

Christina Anderson zphoto at montana.net
Fri Jan 21 21:36:50 GMT 2011

FWIW, John, FAEW worked horribly for me and VDB and I thought it was the solution, too, it looked like it separated into two layers, a sort of silvery layer on top, and was dull, no dmax, just plain yukky. So I switched to Weston and bought a huge pack of it for students. No problem, looks gorgeous. SO, to prove it isn't your paper choice, do you have a piece of some other paper lurking around you can test as a comparison to rule out the solution being the culprit? 
But maybe this is just me and the low humidity in Montana...
Christina Z. Anderson

On Jan 21, 2011, at 11:42 AM, John Brewer wrote:

> Hi Francis,
> Thanks for your comments. No, I didn't let the solution ripen, I'll try
> again tomorrow or Sunday. The print situation is odd, I'm using Fabriano
> Artistico Extra White HP 300gsm. This has worked in the past with VDB and
> other alt processes so I don't think it's a soaking in the paper problem,
> unless it is a precipitate that got through the filter sitting on the
> surface. Do you process in tap water or distilled water?
> John.
> On 21 January 2011 17:06, francis schanberger <frangst at gmail.com> wrote:
>> John,
>> Did you let the solution ripen (sit for 24 -48 hours) after mixing?
>> Regarding the precipitate, I have noticed that if a lot forms during mixing
>> that most of it will go into solution after about a week.
>> I never have had to microwave. I usually mix the VDB in a 500mL bottle and
>> carefully transfer the solution, using a transfer (plastic) pipette, into
>> 30mL dropper bottles after it has ripened.
>> Regarding the print symptoms, I have never encountered what you have
>> described. It sounds like the emulsion isn't sinking into the paper.
>> -francis
>> --
>> francis schanberger
>> www.francisschanberger.com
>> _______________________________________________
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