How do I find the best settings for a resin? I have an Epax X1, I have just purchased the 2nd and 3rd bottle of resin, but I don't know what are the best settings.

What is the best way to find the best settings for a new resin?

Is it possible to print a calibration object that starts with some settings and changes as it goes? For example starts with 12 seconds and decreases half second every 5 mm?

EDIT

The 2 resins I am dealing with right now are Nova3D and Elegoo. Any help with those two resins would help right now, but I would love to have a more generic answer that would allow me to explore and troubleshoot any resin without asking every time.
Since every printer is slightly different (light intensity, for example), you probably want to run one of those 12-spot test patterns where each "spot" gets a different exposure time, then see what time works best.  

I found a more general test pattern at Amerilabs Calibration File which may be useful. Not to mention a zillion other test patterns