Sometime back I read an article by Gregg Kruetz.  He was refuting two books that proclaimed that many of the great masters from the Renaissance and beyond used optical aids to achieve the advances in perspective and drawing.
Take a look at www.greggkreutz.com/WrittenBY/camera_absurda.html.  Gregg does a good job of taking them apart with simple logic and a good knowledge of painting and drawing from life.

Sometime back I read an article by Gregg Kruetz.  He was refuting two books that proclaimed that many of the great masters from the Renaissance and beyond used optical aids to achieve the advances in perspective and drawing.Continue Reading