Digital BW, The Print

Paul,

What did you mean by?

"For the edge between the dark tree and bright sky, using a singe color
channel from the shot that was 2 stops under exposed resulted in a very good
edge."

I assume that you were addressing the problem that sometimes occurs with a 
white edge or halo that appears in digital images with a strong transition 
from dark to light like a building infront of the sky. What is this singe 
color channel technique you mentioned? I've wished for a a way to deal with 
this type of problem that is faster than burning the edge at 400% zoom in.

Derek