RE: Daguerreotypes and Tintypes

Joe,

You are correct. The original tintype process used a collodian (sp$) made of
celulose nitrate disolved in ethyl either and ethyl alcohol and they did use
potassium cyanide in processing the exposed plate.
I was thinking of the modern approach which looks about the same.

Bob

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  http://www.SchrammStudio.com

>From: Joe Smigiel <jsmigiel@kvcc.edu>
>Reply-To: alt-photo-process-l@usask.ca
>To: alt-photo-process-l@usask.ca
>Subject: RE: Daguerreotypes and Tintypes
>Date: Tue, 18 Apr 2006 11:57:03 -0400
>
> >>> schrammrus@hotmail.com 04/18/06 11:30 AM >>>
>Ehud,
>
> >>Tintypes are fairly easy and not dangerous. There is even a kit
>out.
>Porter's Camera as it I think...<<
>
>Bob,
>
>As I understand it, the prepared kit is basically a readymade silver
>halide liquid emulsion that can be applied to metal plates. It is not
>the traditional wetplate collodion ferrotype process which was commonly
>known as "tintype." The true wetplate processes were most popular
>during the period 1851-1880 before being supplanted by dryplates and
>film shortly thereafter.
>
>The true wetplate processes are dangerous and involve explosive
>chemicals such as ethyl ether and guncotton as well as other chemicals
>such as potassium cyanide. Potassium and hydrogen cyanide will get you
>a lot quicker than mercury and bromine.
>
>While not as difficult as daguerreotypy, the wetplate collodion
>processes are challenging and not what I'd call "fairly easy."
>
>Joe
Received on Tue Apr 18 18:28:46 2006