Thiourea toning problem.
Posted: Sat May 25, 2019 10:25 am
A few years ago I started using Thiourea and had some problems where the lighter tones never fully redeveloped. Today I had another go. I have been using the formulas and procedure outlined in the Ephrams book. Anyhow, my question is what am I doing wrong? My light grey clouds all but disappear in the bleach but don't come close to coming back fully in the redevloper. Ephrams suggests immersing the print in hot water if this happens but it didn't do anything for me. He also says to tone at 25C which I did. I'm using Ilford MGFB warm developed in D72 fixed in Ilford rapid 1-4. The prints were toned in Kodak rapid selenium and washed well before bleaching. I noticed that a very similar formula appears on page 308 of the Cookbook, the only difference is that the bleach contains Sodium carbonate which I did not add to my bleach. Any suggestions on how to get my lighter tones to fully redevelop?