A versatile toning solution, this 250mL bottle of MT1 Selenium Toner from Moersch Photochemie is a classic method for adjusting the look and coloration of prints, as well as for increasing print stability and archivability. It is intended for both resin coated and fiber based black & white papers, and its effects vary based on paper type. When used with cool-to-neutral-tone papers, selenium toner gives a mild purplish hue. When used with warm-tone papers, the coloration is more noticeable and results in a more brownish hue.