I'm new here, comming back to film.
I used to print variable contrast in black and white (ilford and kodak) on my old b&w condenser enlarger.
I still have a box of polymax but I've lost the filter pack.
I first came here searching for variable contrast printing. I see that some have had success using leds as light source to control contrast so I'm certainy going to experiment.
I wonder if anyone experimented printing RA-4 with colour red, green and blue leds. I think it should be possible but I'm newbie to colour printing.
All comments welcome!