'Articles' : new site chapter

We've started new chapter on this site. For now, four texts are present: two articles about connection between Ansel Adams' Zone System and digital camera abilities:

Third article describes (in)correctness of data displayed on digicam's LCD screen
White Balance in Digital Cameras: Problems.
The fourth contains an archive with
Renditions of Macbeth ColorChecker targets, 24-patch, DC, and SG.

New authors are welcome!