What is Sepia Toning?
This is an option, and sometimes a preferred look. Sepia toning involves replacing the silver in a black and white photographic print by silver sulphide, which is brown. The print is first bleached, briefly washed and then treated with the sulphide toning solution. A range of different browns can be obtained by varying the pH of the solution. Because silver sulphide is more stable than silver, sepia toning increases the archival properties of the photographic print. This effect can also be achieved digitally on Silver Gelatin and Giclee prints with Adobe Photoshop techniques.
