Sorry Richard, I had just finished reading the whole thread, and still had this fresh in my mind. I should have quoted you, my mistake. The problem is the missing step (s). ALSO please note that on p140 "Remove Color Under Black"; step 1. Copy the Black layer and Invert it.... Probably should say Duplicate the black layer and change the mode to difference.
I figured out the copy (lol), but used cmnd+I to invert. I don't think invert was the correct step, and am pretty sure mode to difference is the correct step.
I left my book sitting for now, as I got very frustrated with this at this point.
Registered: Oct 2001
Location: Western NY
Finally had a chance to check this. You should merge the Luminosity and Black channels between step 3 and 4 -- there is indeed a step missing. If you try it with the tool, you can follow along in the steps and it becomes pretty clear what is going on. The Luminosity is used to generate tone for the black -- it is then corrected so that the black only is introduced at 50% or darker tones. It is merged with the black layer to do 2 things: change the mode of the layer and change the name to Black.
I'll have to get that in the errata. Thanks!