Archived posting to the Leica Users Group, 2001/05/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Disfromage@aol.com wrote: > > In a message dated 5/30/01 11:25:19 PM, sld@earthlink.net writes: > > >Try chromium intensifier on a select roll and see where it takes you. > > Slobodan, > I thought of that, but I think I'll try selenium toner first to see if I can > bump the contrast up a bit. > Richard Wasserman You already checked and you can do one and then the other? I found that selenium doe not seem to do much visibly to the negs but they sure print snappier; at least with cold light! I chromium intensified only once in Northfield Ill 1966 and those negs were so reticulated as the wash water was a little cold that I'm sure that texture was used as a model for the Photoshop filter! the Tri x in chromium algorithm! Mark Rabiner Portland, Oregon USA http://www.rabiner.cncoffice.com/ - -- CHROMIUM INTENSIFIER, Ilford I.In-3 BICHROMATE STOCK SOLUTION Potassium Bichromate 100.0 grams Water to make 1.0 liter This solution keeps indefinitely. BLEACHING SOLUTION A Bichromate stock solution 100.0 ml Hydrochloric Acid (conc.) 2.4 ml Cold water to make 1.0 liter BLEACHING SOLUTION B Bichromate stock solution 100.0 ml Hydrochloric Acid (conc. ) 12.0 ml Water to make 1.0 liter The bleaching solution should be freshly made. Solution A gives more intensification than Solution B. Immerse the washed negative into either of these solutions until it is entirely bleached, wash until the yellow stain is completely removed, and redevelop in strong artificial light or subdued daylight (NOT direct sunlight, which will cause stains!) with any negative developer such as Ilford ID-36. Wash thoroughly. good luck Richard you may need it!