From: Wayne Bowdish (wbowdish@mountaincable.net)
Date: 07/10/03-08:28:20 PM Z
I don't know the formula but I believe that Photo Techniques magazine had an
article some years back on rolling your own chemistry to get the same effect
as halochrome - might even be the same formula. I had a look at their site
and it appears as though they are sold out of that issue but maybe you could
find a copy in a library.
http://www.phototechmag.com/back_issues2.htm
Vol. 20, No. 1: SORRY, SOLD OUT-.../ Silver Mirror Printing / ...
----- Original Message -----
From: "Nigel Miller" <nm1@bolton.ac.uk>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Thursday, July 10, 2003 2:00 PM
Subject: Halochrome
> Hi
>
> Does anybody out there know the chemical formula for the Halochrome
process?
>
> This process may be known under other names - essentially it is used to
> either give a silver on black or silver on white print using conventional
> black and white printing paper.
>
> To use Halochrome you could either develop the print, then before fixing,
> wash and immerse the print into the Halochrome developer before washing
> again, fixing and washing. This, I think, turned the whites silver leaving
> darker tones as normal.
>
> The reverse of this was achieved by bleaching a conventionally finished
> print in Halochrome bleach and then re-developing in Halochrome developer.
> This turned the black tones silver leaving the lighter tones unaffected.
>
> I hope someone out there has heard of this process as it is extremely
> effective. I used to buy Halochrome in the UK from Calumet and I believe
> that the makers in the USA were called Rockland, but sadly it appears that
> they no longer manufacture Halochrome
>
> Regards
>
> Nigel Miller
>
>
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