Quote Originally Posted by AgX View Post
Exposing edge markings by means of an LED/fibre matrix:


That's the way the industry does it.
At least Agfa (with a homebuilt unit enabling exposing K-code too), and Filmotec, who bought one such machine from them.
I thought so. It orignally struck me that this was how it is done this way when I was looking at a roll of velvia. The text has fine lines running through it

I suspect that Ilford and possibly Kodak might use a different system, as their edge markings look smoother.
The Ilford edge marking machine is also quite large, so I'm guessing it's rather more complex than this system

Having said all that, and as interesting as film finishing is, aren't we getting rather ahead of ourselves here? We haven't even sourced the base yet, let alone built the coater