Re: Colored Dags?

[Alan Bekhuis <alan@casedimage.com>]

Dear Ray

In 2002 I met a modern practitioner of the Lippman process, Darren  
Green who resides in the UK.  I have one of his Lippman plates and  
its beauty never ceases to amaze me.  After a bit of searching I  
found an article that describes his process and I have posted a pdf  
of it on my website, you can view it at;

http://www.casedimage.com/forum/BurderRPSHeliochromes.pdf

The paper also describes the Helichromes of a mutual friend, David  
Burder.  I gather these are not Hillotypes but another process.   
These were on a copper plate and he would buff them with a cloth to  
improve image before viewing.  Strange but true.

On the subject Of Rev. Hill's images - Bill Becker of the American  
Museum of Photography gave a very good presentation at a Dauerreian  
society conference a few years ago and in covering the History of the  
process mentioned and showed slides of the ones produced in the  
1980's.  The photomicrographs showed a colored crystalline structure,  
not an interference pattern as happens with Lippman images

regards


_____________________

Alan A. Bekhuis
Daguerreotype Enclosures
www.CasedImage.com
alan@casedimage.com


On Jan 15, 2007, at 7:51 PM, Bill William wrote:

> Dear etienne
>
> Thank you very much for that clarification.
>
> Having seen more than 100 Lippmann color photographs
> which also utilise interference generated colors, I was
> quite certain of the additional facts you now mention in
> your current post. It is not surprising that one might
> have trouble reproducing and or viewing such colors.
>
> Now, to see some of these images, either originals, or
> somebody's recreation....
>
> Does anyone know who holds these?
>
> Ray
>
> ----------------------------------
> etienne wrote:
>
> > Some researchers in the later 20th century did, in
> > fact, succeed in making "color-ish" Daguerrotypes.
> > "I think the sensitive plate was prepared using very
> > close to standard Dag practice, but development was >
> not chemical, perhaps Becquerel, and there was
> > something very fragile or fugitive about the image -
> > perhaps, as has been said by others on this thread,
> > that fixing destroyed the colors.
> >
> > In any event, the color mechanism was found to be
> > interference --
> --------------------------------------
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