Peter Hogan - Presysol
Specialist black & white chemicals
for fine photographers



















NEW!!! We now have ready the long-awaited successor to Prescysol - the new 'EF' - extra fine and very sharp, and some very interesting toners and paper developers. And we stock the Cromatek range of filters and accessories!



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Specialist Black and White Products for Fine Photographers - Peter Hogan

Other Products

Prescysol ‘EF’

New Prescysol ‘EF’, (for Extra Fine) This is not just a ‘tweak’ on the Prescysol formula. ‘EF’ tans and stains, just like Prescysol, but is extra fine grained and very sharp. An extremely tolerant, compensating developer, ‘EF’ is supplied as two 100ml concentrated solutions, and mixed 1ml A solution, 1 ml B solution to each 100ml of water. Sufficient for 30 rolls 35mm film, or up to 40 rolls 120 film. Long shelf life.

Blu-Blak Paper Developer.

This developer is NEW, and we believe this is the first time it is commercially available. It is supplied as two packs to make 1 litre of bleach and 1 litre of developer, both at working strength. Immerse any black and white print in the bleach until the image has completely gone, and re-develop in the Blu-Blak developer. The image will re-appear intensified, with increased D-Max and contrast, and, with fibre papers, with luscious, deep blue-blacks. The working solutions can be stored and re-used for up to 12 months. Now that’s economy!

Selenium Sulphide Toner.

Not just selenium toner, although it does contain selenium. To our knowledge, this is the first time this toner is in commercial production. This toner produces superb, rich brown tones, proportional to the tones within the print. Ok, it does smell a bit, (that’s the sulphide,) but that’s a small price to pay…Supplied as a pack containing the bleach and the toner concentrates, and diluted 1:19 for economy. This toner is re-usable and has a long shelf life.

MP3 Sepia Toner

Standard variable sepia toner, but made to our high standards. Supplied complete with bleach and toner concentrate. Proportional use of the activator can produce colours from yellow to brown. Works beautifully when ‘split’ with gold or blue toners. This sepia toner can be stored and re-used!

NT Paper developer

This is out standard neutral tone paper developer, and was formulated to enhance subsequent toning with any paper. Gives a full range of tones, with deep blacks and sparkling whites. Makes up to 5 litres of working solution.

Cromatek Filters

We are pleased to announce that we have been appointed stockists for the Cromatek range of filters and accessories. We have personally been using Cromatek filters for many years, and have no hesitation in recommending them. Why pay through the nose for certain ‘name’ filters when Cromatek does exactly the same job! The range is too extensive to itemize in the shop at the moment, but e-mail, fax or mail for a brochure and price list.


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