Reply To: InDesign/Prepress Myths

Hank-

I think it goes back to the good old Pythagorean theorem. If you think of a halftone cell as a square, you can form a right triangle with two sides and the diagonal as the hypotenuse. Now rotate it 45 degrees for your black plate. That diagonal is now the width of the halftone cell, and it is 1.41 times the length of the sides of the cell. a² + b² =c². Does that help or hurt?

This site has an illustration: https://www.noduffstuff.co.uk/h…..0info.html

Then again, David literally wrote the book, so why am I answering? Hope I'm right (fingers crossed).