[alt-photo] Re: wet-plate collodion

[Joseph Smigiel]

Jeffrey,

See:
http://www.permadocument.be/texte/YRK/RFK/OPIUM%20FIELDS/RKE3.html

Mention is made there of "bronze powders" as well as collodion and  
the gold leaf/banana oil method on dry plate positives.  I've also  
read elsewhere about the process but do not recall the source.

I think the gold leaf would be prohibitively expensive.

Dan Burkholder is using gold leaf and vellum with his Pt/Pd printing  
process.   Perhaps he can comment with further historical info.

Joe


On Apr 14, 2010, at 9:16 AM, Jeremy Moore wrote:

> Joe,
>
> What's the reasoning behind this? I haven't heard this suggestion
> before--that they are wet plate collodion positives backed with  
> brass powder
> as opposed to silver gelatin dry plate backed with gold leaf in a  
> banana oil
> suspension.
>
> On Tue, Apr 13, 2010 at 10:31 PM, Joseph Smigiel  
> <smieglitz at gmail.com>wrote:
>
>> I believe Curtis' Orotones were actually ambrotypes backed with a  
>> brass
>> powder.
>>
>>
>>
>> On Apr 13, 2010, at 9:39 PM, Bob Barnes wrote:
>>
>>  PS; what were Sherriff Edward Curtis'  (sorry for the oblique  
>> humous)
>>> gold-tone prints?
>>>  PSS; your arcticle on Unblinking Eye really encouraged me, but the
>>> toxicity is still intimidating.
>>> Bob
>>>
>>>
>>>
>>>
> _______________________________________________
> Alt-photo-process-list | http://altphotolist.org/listinfo