Special developer for warm-tone papers, the image produced is a warmblack. Light selenium toning (dilution between 1+100 to 1+200) produces a sepia tone and increases the maximum black. Longer toning will produce a colder brown.

Soft working print developer, supplied as powder making 1 litre of stock solution. Includes pack of 'Finisher Blue'. Can be as a single bath yielding soft warm results, or in a 2-part system with Separol NE, WA or BLUE.

Catechol is a slow but effective developer used as first developer in a 2-bath print process. The print is first developed in Catechol until the shadow areas are defined, usually about 50-90 seconds. Highlights are then brought up in the second developer, & the result should be better separated lower tones, with a shift towards colder tone.

Solarisation as a technique has been sidelined by what can be done on the computer screen, but the original method can yield fascinating and permanent results. Solarol is a print developer tuned up to assist the technique; it doesn't do it for you, a flash exposure is still required about one third of the way into the development stage. Full instructions are supplied. The developer is supplied in a sealed metal tin, requiring opening with a standard tin opener, and makes 2 US quarts (1.9 litres) which is then used diluted 1+1.

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A small powder packing of developer which can be used for either negative or print development. Mixes to 1 litre, which is used undiluted for prints, and used one-shot at 1+3 for film development. Negative development will not be on a par for quality with a dedicated film developer, but a single developer can be useful both in space and economy, in the field, or maybe for educational use.
INFO: Foma Universal Developer PDF

Soft-working print developer in convenient liquid form, diluting 1+9 for use with fibre-based papers. Higher concentration is recommended for RC paper, presumably to 'swamp' the effect of any incorporated developing agents in the paper.