A few years ago the manufacturers of ink jet printers were struggling in order to make printers that could lay down very tiny dots--very close together. During those days if you tried to make a black and white print, it tended to look a little grainy...

There is a popular misconception that digital imaging is limited to color photography. That's simply not true. Digital imaging embraces all the same aspects of color--or lack of color--that conventional photography does. Part of this lack of...