[alt-photo] Re: tintype developer formula?

[C.Breukel at lumc.nl]

Interesting, Christina


The formula almost looks like a Monobath developer, itcontains jut one developing agent as well as a moderate amount of hypo (fixer), I guess not sufficient for proper fixing, but might have an effect on the silver atoms shape..Richard chime in please..;-)..

Best,

Cor

> 
> This, too, from 2002 which I wish I would have come across before I
> finished the Experimental Book. So far, the only tintype developer
> (meaning, for liquid emulsion tintype or modern tintype) game in town is
> Rockland.
> 
> Having donme some Tintypes I did use sheets of black anodized aluminum of
> a
> thickness of 0.2mm. You can buy them at suppliers for sheet metal.
> Because many developers reduce to dark metallic silver you would need for
> Tintypes one which reduces to more bright metallic silver. Otherwise you
> would not get a contrasty positiv image.
> 
> Here this formula:
> 
> Water ca. 50 C 600ml
> Hydrochinon 10g
> Sodiumsulfit sicc. 80g
> Sodiumcarbonat mono 80g
> Sodiumthiosulfat 80g
> Ammonia 60ml
> add cold water to make 800ml
> for more contrast add ammonia.
> 
> 
> 2-5 min inspection development under red light until higlights and
> halftones
> are well out. Short rising, then fixing.
> 
> In »Cassel´s Cyclopaedie of Photography« I found, that you can make this
> »dry tintype« more similar to the original wet collodium tintype by
> varnishing it.
> 
> Burkhardt Kiegeland
> 
> 
> Christina Z. Anderson
> christinaZanderson.com
> 
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