Ilford Harman Selenium Toner 1 Litre film camera

Selenium toner for archival black-and-white prints

Ilford Harman Selenium Toner is a liquid concentrate formulated for dish and tray toning of all black-and-white photographic papers, including resin-coated and fibre-based types. It produces visibly warmer, archival-quality prints with enhanced detail and contrast. The product is intended for darkroom workers who want a reliable, professional-grade toner that operates at standard room temperature. Buyers who need a toner for colour materials or a ready-to-use solution without dilution will not be served by this concentrate.

Long working life and stable performance at room

The toner is designed for use at ambient temperatures around 20 °C or 68 °F and maintains a long working dish life, allowing multiple prints to be processed over extended sessions without rapid exhaustion. This stability reduces the frequency of fresh solution preparation and supports consistent tonal results across a printing run. Users who require high-throughput processing at elevated temperatures or automated machine toning will find the formulation less suited to those conditions.

Simple dilution and tray workflow with standard

As a concentrate, the toner is diluted before use and prints are typically pre-soaked in a plain water holding bath at a temperature slightly higher than the working solution to help prevent toning irregularities. The straightforward dish-and-tray method fits conventional darkroom practice and requires no specialised equipment. Printers without access to temperature control or those unfamiliar with pre-soak procedures may encounter uneven toning or staining.