Sincere thanks to all who offered advice re chromogenic B&W in E6. It is obvious that results would be well below par so I have elbowed the idea. I have decided to go down the most obvious alternative path - that of reversing a convential film such as PanF+, FP4+, or Tmax. If anyone has experience of this proceedure I would very much welcome any comments, suggestions or even formula, I know there are a few fomula already posted on many sites but any practical experiences would be great.(posted 8982 days ago)