My X-Rite 361T Densitometer arrived yesterday so I am ready to begin BTZS testing on my film developed in Pyrocat-HD. The first film I will be testing is TMAX-400.

I know that I will need to read the Pyro negatives using the "UV" mode on the Densitometer, but since I don't have a "Pyro Stained" step wedge I'm not sure how to handel the reference reading from it. (Does that make any sense?)

Do I measure my step wedge in "UV" mode also?