What I have never seen explained scientifically so that it remains consistent is what causes this apparent randomness in outcomes
It's a process involving a developer, some fixed form of agitation, dilution, temperature and time so why the randomness? If this kind of randomness in the quality of the outcome was to occur with say the process, time agitation etc laid down by Ilford for one of its films then I wonder how long Ilford would have existed
So what it is in terms of facts and not simply conjecture that causes this randomness?
Incidentally I use your quote, Rayt, simply as an illustration. It's a general question for all and any who have ever seen or know of a scientific explanation
Thanks
pentaxuser