The "Nodal Point" is not the same as the Field of Focus. Even then ... I'm thinking of ray tracing ... ?Originally Posted by Donald Miller
Kind of surprising that a scratch on a condenser lens should be visible ... but, to tell the truth, I can't remember ever working with a scratched condenser lens.
I have DeJur condensing system enlarger - I have to restore the Power Cable, which disintegrated over time. When I get it going I'll try out a "simulated" scratch.
Does anyone know of a source or the Old Style two prong, "Iron-Toaster" plug-in power cords?