Ilford Darkroom Supplies>1 Litre Harman Selenium Toner

Key Features: Liquid Concentrate Works on RC and Fiber-Based Paper Tonal Change Depends on Paper Used Working Strength of Approx. 6 Months Ilford Harman Selenium Toner Overview This 1 litre bottle of Harman Selenium Toner from Ilford is another innovation from Ilford Photographic, a leader in the film and chemical industry. It provides deep, rich blacks and a tendency to push colours towards the purplish end of the spectrum. Olive hues will be absorbed, creating brown tones on fibre-based silver paper. Selenium toned prints have a subtle look that no other type of toner can yield; Dmax is enhanced with a corresponding “bump” of print quality Toxic – Must be handled in a well ventilated area and treated as hazardous waste Multigrade Warmtone papers are very responsive to selenium toners: using higher dilutions (e.g.: 1 10, 1 20) gives a slight cooling of the image tone and a shift in hue towards red; When you use at lower dilutions (e.g.: 1 3, 1 5), you can get a purplish brown Colder papers react less rapidly, but they still benefit from selenium toning’s highly effective deepening of the maximum black and its expansion of the entire tonal range; The reaction of selenium on the silver halide (AgX) of the print hardens the adherence of the image to the paper; This improves the chemical stability of the print as well as its permanence and archival properties while also defining its appearance For a standard dilution of 1 3, the capacity of the toning solution is at least the equivalent of 25 sheets of 20.3×25.4cm (8×10″) per liter Working strength solutions will normally last for up to 6 months in full, tightly capped bottles, 1 month in half tightly capped bottles, and up to 7 days in an open tray