Fomaspeed Variant III is a black-and-white, variable-contrast enlarging photographic paper on a resin-coated (RC) paper base. Its contrast can be varied from extra soft up to ultra hard by using colour filters at exposure. The paper is designed for amateur, commercial and artistic photography as well as for other applications.
Fomaspeed Variant III features a very rich half-tone scale over all contrast grades, a shining white paper base and saturated blacks. The paper is manufactured using silver chlorobromide emulsion that gives neutral-to-medium warm tone to the silver image. Developing agents incorporated into the emulsion layer facilitate rapid machine processing and a shortening development times in manual processing to 60 - 90 seconds at 20C. Due to the resin-coated paper base and a thin emulsion layer, the time necessary for development, fixing, rinsing and drying is considerably shortened and the consumption of processing baths and wash water is reduced.
Variant III is an orthochromatically sensitized photographic paper. Therefore, a suitable safelighting differing from that for conventional photographic papers should be used. Dark-red safelight filters for orthochromatic materials, e.g. Kodak GBX-2, Ilford 906, Agfa R1, Osram Duka 50, etc. in connection with a 15 Watt lamp are fully suitable. More comfortable and user friendlier light sources may be used with orange LED diodes or orange filters provided that they have a safe wave length band pass over 610 nm. Because of its high speed, this paper should be exposed to safelighting only for a time prerequisite to handling.