Has there ever been a B/W chromogenic E6 film?

[Ivo Stunga]

Different in what exactly?

All feature essential reversal steps: 1st dev > bleach > clear of bleach byproducts > reexposure - either to light or fogging via chemical means > 2nd developer (1st may be reused) > Fix > Rinse Aid

As does Foma Reversal Set, Scala Kit, Ilford Reversal Processing, Kodak Reversal Notes, you name it...


It's mysterious only at the first glance. Remove the reversal steps and it's a straight-forward BW processing. The reversal steps (bleach, reexposure, redevelopment) is where slide magick is at. Poor bleach leaves it's unique handwritng and can be recognized, fixed the next time around by adjusting times accordingly. As does insufficient 1st dev or overdevelopment... More parameters to take into account, but can absolutely be done.

I started with reversal right away with no prior darkroom experience.

 

[RodinalSpezial]

They are different from the Dia Direct process posted by @RodinalSpezial .

In principle they are the same with slight variatons as every B/W reversal process follows the same scheme:

First Development (with high contrast developer)
Bleach (usually Dichromate or Permanganate)
Clearing Bath
Re-exposure (or chemical fogging)
Second Development (often the first developer is reused)
Fix

Throw in a lot of washing in between and you can get slides from every B/W film.