Re: Homemade POP ??

From: Jalo Porkkala ^lt;[email protected]>
Date: 09/21/04-01:46:37 AM Z
Message-id: <>

I understand there is a way to make your own POP using modern (baryta) enlarging papers, or ...? Anyone know a recipe?
Would be nice to POP all my boxes of outdated Agfa Brovira


Etienne Garbaux kirjoitti 21.09.2004 kello 03:37:
> Robert wrote:
> > Has anyone heard of making your own POP (printing out paper)? Got any
> > ideas about how to do this. I know you can buy POP paper but I'd like a
> > matt or semi matt surface and I don't think thats available
> > storebought.
> I assume you mean gelatin-silver POP. Lots of us make and use salted
> paper, and a fair number make albumen paper, both of which are POP.
> I have
> also made collodion POP (commercial collodion POP flourished very
> briefly
> before it was replaced by gelatin).
> Probably fewer of us make our own gelatin POP than make albumen, both
> because it looks so similar to ordinary silver-gelatin prints (thus,
> why
> bother?) and because relatively few of us have gotten into the
> preparation
> of silver-gelatin emulsions. It is not very difficult to make the
> chloride
> POP emulsion. Coating paper is a bit more challenging. In my case,
> I want
> the emulsion evenly coated over a nice, shiny, calendered baryta
> layer, and
> until recently that was difficult to find. Matte finishes are
> harder to
> make at home -- factories use textured calendering wheels, while home
> experimenters must put junk in the emulsion to give it a bit of surface
> texture.
> There should be several S-G emulsion recipes in the archives. For
> POP you
> want to mix a chloride salt (no bromide or iodide) with an excess of
> silver
> nitrate, including some citrate, tartarate, or other similar organic
> anion,
> then do not wash the emulsion before coating. Be aware that
> consistency in
> S-G emulsions is the result of carefully controlling many variables,
> including some that you may not even have identified. To achieve
> it, make
> very careful notes and do EVERYTHING exactly the same every time.
> Best regards,
> etienne

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Received on Tue Sep 21 01:46:57 2004

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