BergToner for Black & White Prints - Selenium/ 16 Oz.
B&H # BETSP
MFR # STS
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The use of Berg Selenium Toning Solution on warm tone papers results in reddish brown tones on toning for 2 to 10 minutes in Berg Selenium Toning Solution, diluted 1 part toner to 3 parts of water (1:3). Other papers may give little or no color change.
To avoid color change, but protect the image and increase D'max (deepen dark blacks and increase contrast somewhat), dilute 1 part toner with 10 to 30 parts of water, and tone for about 2 to 10 minutes.
After toning, use fresh Berg Bath solution and wash thoroughly to achieve maximum archival protection.