Ilford harman selenium toner is a liquid concentrate toner designed for the dishtray toning of all black and white photographic papers both resin coated rc and traditional fibre based fb this toner provides a simple and effective approach for the user wishing to produce selenium toned prints it should be used at ambient room temperatures nominally 20degc68degf ilford harman selenium toner delivers an archival visibly warmer print to the user with the additional benefit of a tone