The Darkroom Cookbook Forum

The Variable Contrast Printing Manual covers this in detail. I see where it covers it nicely when evaluating for relative ISO RNs visually, but I don't see where it mentions the process of actually using a reflection densitometer to arrive at the RN. Thank you for the input, I was beginning to wonde...

If using a reflection densitometer, am I to measure and graph the reflection density of the first differentiating black strip and the first differentiating white strip of the projected step wedge? OR, the reflection densities of Dmax and Dmin of the projected wedge? I'm thinking it should be the fir...