Digital BW, The Print

Hello All,
With the help of Martin Wesley, 
I have posted a greyscale .jpg to the  
folder: > Files > Image processing.

 The higher resolution will assist in visually
 indicating flat spots in your grey curve. I found it 
 interesting how the eye causes the portion of a grey
 square adjacent to a darker one to appear light and
 the adjoining edge of the darker square to appear
 darker. I also sometimes take a card and work from 
 light to dark, covering the adjacent dark square and
 staring at one shade for a few seconds, then slide the
 card to reveal  the next darker and qualitatively
 observe the perceived shade change... working through
 the set, the soft contrast areas are easy to resolve.

Best,
Alex
Orlando Fla