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Photographers' Formulary

Photographers' Formulary Thiourea Toner, Variable Strength Toner for Black & White Prints, 1 Liter

SKU: PYTT1L MFR: 060045
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About the Photographers' Formulary Thiourea Toner

FORMULARY THIOUREA TONER will give beautiful rich brown sepia-like tones.

The print is first bleached using a ferricyanide-bromide bath then redeveloped in a sulfide bath. In this process, the silver metal in the print is first converted to silver bromide, then to brown silver sulfide.

The end result will give the impression of a print made in the late 1800's.

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