Hi - I have a basic question. Is there a surefire workflow for determining exposure times? I am making negs for Pt/Pd using a curve from Pro inks, and I am not sure if I am giving my negs enough exposure. My images are too light, so I ran a 16x21 patch neg and made a print. The lighter values are too light. Before I get into a long process of measurements and curve alterations, I am wondering if I am also just not exposing my negs for long enough. The black on my print seems good to the eye, and if I reduce my exposure time, it does not change. But is there a way to test if I have gone far enough on my exposures.
I am using a NuArc expusre unit built for screen printing, and exposing for about 15 minutes using 50/50 pt/pd in the MaldeWare process.