Digital BW, The Print

Paul,

I see you put some more Ebony tests up on the Aardenburg list to evaluate.

I guess I'm not understanding why you are still submitting K3 tests and not at least 4 or 6 channels that might test differently in a direct comparison to Piezograpy K7 or the Piezo Quads. Don't you have a more subtle hextone set available for test? 

I've submitted the K6 carbon sepia and NK6 on a paper other than Photorag now.

Personally I would like to know if lighter dilutions of all of these sets, that produce the  delicate excellent smooth highlight tonality are more subject to earlier fade and or hue shift than tritones or quads.

john